# Strategies for Croesus

## Overview

Croesus is a skilling boss focused around Fishing, Mining, Woodcutting, and Hunter. The encounter is considered to be safe, as the player passes out instead of dying and is simply removed from the arena in the event of failure. The boss has a very generous drop table with very little investment on the player's side.

The boss has two phases: the skilling preparation phase, and the killing phase. The skilling phase occupies most of the encounter's duration, while the kill phase consists of damaging the core of the boss. As it is a skilling boss, wearing one of the four elite skilling outfits can prove beneficial, especially the combined sets - fury shark, magic golem, nature's sentinel, and volcanic trapper respectively, as they provide additional experience and better resource harvest rates.

Legendary skilling auras, especially tracker, lumberjack, and call of the sea are also beneficial for their respective nodes. Quarrymaster aura is not particularly useful at Croesus since the durability of the mining nodes is extremely small, although it is still useful for its critical hit bonus, which guarantees fungi whenever it activates with an elder rune pickaxe +5 and equivalents.

If a player does not participate in damaging the core, they will not receive kill credit.

### Attacks

Note: Core stats is a reference to the primary four skills required - Fishing, Hunter, Mining, and Woodcutting.

• Spore Bombs - Croesus launches bombs at players, emitting a 3x3 cloud on impact. Getting hit by this drains the according stat by 15 levels per tick. Croesus always starts the bomb rotation counter-clockwise from the southwest, meaning that it launches red, yellow, green and finally blue bombs in that order per rotation.
• Fairy Rings - Croesus launches fairy ring fungi at all players, indicated with a faint yellow glow. If the player is still standing on the tile it's on when the centre ring appears, they will be transported to a random location in the arena. Unlike the other attacks, this does not generate rot energy if players are hit by it, although it does rot a fungi.
• Slime Mould - Croesus launches orange slime moulds (at least 1 per player for four players) in a 7x7 AoE centered from the player's position that try to follow their primary target. If they hit any player, including non-targets, they will explode and drain core stats by 25% of their maximum levels and rot one fungi if the player carried one. They will automatically explode after a short time, dealing no damage to anyone if this is the case.
• Hard Fungus Fall - Croesus launches a small red bomb at players' location at the start of this attack, stunning and binding them for 4 seconds if caught. If the player does not use Freedom to break out of the stun, their core stats will be drained by 20% of their levels. This drain does stack if players are on the same tile and do not Freedom the stun away. Using Anticipation or Freedom beforehand or using Freedom while stunned will prevent the stat drain from occurring, even if hit. This attack has a 1x1 AoE.
• Sticky Fungus - Croesus roots some players in place with sticky fungi, interrupting their current action and draining core stats by 10% of their maximum levels every few seconds for a total of 5 hits until the player is freed. This is either through natural decay (tanking all five hits), using logs, timber fungi or wielding Sana's fyrtorch or an Orthen furnace core. For the latter four simply interact with the fungi to break free alone.
• Logs have a 1 tick delay over the fyrtorch and furnace core after freeing oneself but provide Firemaking experience. They are also prioritized over timber fungi. The fyrtorch and furnace core override logs and fungi.
• Energy Fungus - Croesus deploys four Energy Fungi near it. These fungi share their health between each other, and their durability is scaled to the amount of players inside the arena when the encounter started. If these fungi are not destroyed, Croesus will gain 40% rot energy. Energy fungi always appear in tandem with Sticky Fungus whenever it occurs.

Being hit by one of the stat draining attacks will remove the buff from an Extreme hunter potion and automatically shatter any Crystal Mask the player has.

## Skilling locations

The following table may be referenced to find where resources are obtained and used during the encounter.

Location Skill Resource gathered Creature carcass Statue Statue Resource 1 Statue Resource 2
North-east Fishing Fungal algae Crassian Leviathan Ophalmi Calcified fungus Timber fungus
North-west Hunter Fungal spores Dagannoth Rex Vendi Fungal algae Calcified fungus
South-west Woodcutting Timber fungus Araxyte Sana Fungal spore Fungal algae
South-east Mining Calcified fungus Giant Mole Tagga Timber fungus Fungal spore

Each carcass has three skilling nodes on them and dead guards around them. The araxyte carcass has timber fungus nodes on it and Lumbridge and Varrock guards around it (), the dagannoth carcass has fungal spores nodes on it and Lumbridge and Varrock guards around it (), the leviathan carcass has fungal algae nodes on it and Lumbridge and Varrock guards around it (), and the mole carcass has calcified fungus nodes on it and Lumbridge and Varrock guards around it ().

## Strategy

During the entire fight all players should always pay attention to special attacks and avoid stat draining as much as possible. The player has a health bar that is their "primary" health, which is not based on life points. This bar drains when the player is hit with stat drains. If too much stat drains are incurred, the player will pass out and return to the viewing platform near Gorvek. The player's "food" are super restore potions and other potions, which restore the secondary health bar. Communication between players play an important role and increase the chances of successfully ending the encounter.

Croesus' health scales according to the amount of players taking on the boss. It starts off with 10,000 base health and scales with the formula ${\displaystyle 10,000+(30,000*n)}$, where ${\displaystyle n}$ is the number of players present in the arena when the encounter is started. Croesus will automatically rot and destroy any fungi carried into the fight from the outside in the player's inventory.

In private instances, up to 50 players can fight Croesus, while this is capped at 18 for public instances.

Croesus has a rot bar, located under the health bar, that fills slowly over time. The percentage also increases when players are hit by the special attacks. If the rot bar reaches 100% and the boss is not subdued, a cutscene will play in which everyone in the arena flees as Croesus becomes too strong, resetting the fight. It is possible to finish the encounter if the bar reaches 100% right as the core is exposed, pausing Croesus' attacks, provided that the boss is finished off before the core closes again.

While not necessary, Crystal Mask spell allows the player to safely tank a stat drain attack from Croesus. The mask will wear off if this is the case. Crystal Mask will not protect the player from the stat drain from stepping on a mushroom mine or sliding on a non-glowing mushroom.

### Roles

• "Long" runner - This player gathers 16-17 of their assigned quadrant's fungi and makes their way towards the statue diagonally across from their quadrant.
• "Short" - This player gathers 16-17 of their assigned quadrant's fungi and makes their way to the statue immediately counterclockwise from their quadrant.
• Rotter - usually an excess in 5 and 9 man teams, this player rots each of the quadrants.

Example of a long and short runner:

• Player A is assigned to Hunter (northwest) quadrant. The player gathers 16-17 fungal spores and runs to Mining (southeast) quadrant.
• Player B is assigned to Fishing (northeast) quadrant. The player gathers 16-17 fungal algae and runs to the Hunter (northwest) quadrant.

### General strategy

Node explained.

Once the encounter has started, players should focus on depleting the fungi from the large monster carcasses so they can do more damage to the boss.

There are three nodes on each of them - one sparkling, one regular, and one darkened. If the player harvests from a darkened node, they only obtain rotten fungi, and gathering progress is reverted. Therefore, this node should always be avoided. Gorvek will inform the team whenever the carcasses have been fully depleted. When the large monsters are fully depleted, a bar will slowly fill over time, as Croesus will attempt to reinfest their carcasses.

This can be significantly slowed by using 10 rotten fungi on a skilling node on the carcass. Simply rot normal fungi to obtain some, as it is also the quickest and consequence-free way to do so. Gorvek will warn the team if the carcasses are about to be reinfested, and advise players to poison them if not done so already.

Large mushrooms, showing sparklings.

The gathered fungi will need to be transported to a correct statue, forcing players to traverse through piles of mushrooms on all four sides of the arena. The northern and southern sides contain an obstacle course with four mushrooms per row. One of these four will be sparkling, and this is the one that can be safely stepped on. The sparkling mushrooms change every 30 seconds.

The eastern and western sides contain mushroom mines, but some parts are clear of these mines. If the player slides past a non-glowing mushroom or steps on a mushroom mine, they will suffer a stat drain, and rots the top-most fungi in the player's inventory each time this occurs. The fairy ring and slime mould mechanics also rot the top-most fungi in the player's inventory if the player gets hit by them.

During the encounter, Croesus will continually launch attacks (refer to the attack rotation below). These are always fired at the same time, so experienced players will know when to dodge them. When energy fungi appear, everyone must clear them out as soon as possible, as Croesus absorbing them will likely end up in a failed encounter. These also provide massive contribution to the team, so they should never be skipped.

Mushrooms, showing correct path.

Whenever a statue has all the necessary materials, they can be restored and afterwards can be prayed at. Doing so causes the statue to unleash a blast of energy at Croesus, stunning and preventing it from performing any attack, while opening the path into the middle. This does not stop any active fungi clouds, fairy rings or toxic slimes if present, but it does kill off energy fungi.

Every time a statue is prayed at, it opens the core for 15 seconds for each finished statue. Statues completed as the middle is already open extends the current timer by 15 seconds. Statues can be prayed simultaneously to open the middle within just one cycle, enabling fast kills. Similarly to Big Game Hunter, progress is held if the action is interrupted, although this usually provides no advantage in most cases.

Alternatively, they can be opened consecutively after the middle closes, to prolong the core's total exposure throughout the fight. The latter is recommended when there are many players in the instance or when players do not have high gathering skills to deal significant damage to Croesus.

There is a random mutated skilling node in the middle that the players must interact with to deal damage to Croesus. The possible nodes are mutated calcified fungus (), mutated fungal algae (), mutated fungal spores (), and mutated timber fungus (). This node selected is random, although it stays the same for each individual encounter.

The damage dealt to Croesus is determined by the following:

• With one carcass cleared, players deal 25% of their base damage against Croesus.
• With two carcasses cleared, players deal 50% of their base damage against Croesus.
• With three carcasses cleared, players deal 100% of their base damage against Croesus.
• With all four carcasses cleared, players deal 150% of their base damage against Croesus.

The "base" damage is the player's (current skill level * 10). Visible stat drain/boosts do count towards decreased/increased damage, so make sure to drink a dose of super restore if stats are lowered and a skilling potion appropriate to the node to boost, although the latter is optional as the boss can be easily subdued with everyone in the arena with no stat boosts or even if a few players lack high skill levels. Damage is only inflicted when an experience drop registers.

While the player harvests from the core, green, white, and red spores occasionally appear from it. If the player interacts with the node when there are green or white spores on it, they will deal 1,000 and 500 poison damage respectively to Croesus. If they interact with the node when there are red spores on it, they will instead heal the boss for 2,500 health. The spores will eventually dissipate after a short duration, although when and what colour they appear as is random. This damage/healing is unaffected by the amount of carcasses cleared of fungi and is individual to each player. Gorvek will warn the team when the core is about to restore its protective layer, which will knock players into a random quadrant if they are still inside when this occurs.

The players only have one try with all four statues - if Croesus is still not subdued when it recovers and all four statues are spent, the encounter automatically fails. When Croesus' core reaches 0 health, the encounter ends. All fungi obtained in the arena, including rotten, disappear from the players' inventories and ground when the encounter is successful or fails.

In most teams with all four carcasses free of fungi and no one passed out, three statues is more than enough to subdue Croesus, however it is still recommended to wait for a second set of energy fungi in small teams for additional drop rolls. If a player does pass out in the gathering phase, all four statues should be restored and prayed at, with all carcasses poisoned as a safety precaution.

If too many players pass out in the gathering phase, it is recommended to teleport out and restart.

### Attack rotation

The rotation starts and 0:15 and special attacks follow with intervals of 12 seconds which means a full attack rotation of roughly 2 minutes and 25-35 seconds. Note that Croesus will telegraph the attack 1-3 seconds beforehand, giving players time to avoid them.

• 0:15 - Red spore bomb
• 0:27 - Fairy ring
• 0:39 - Slimes
• 0:51 - Yellow spore bomb
• 1:03 - Stun
• 1:15 - Sticky Fungi
• 1:27 - Green spore bomb
• 1:39 - Fairy ring
• 1:51 - Slimes
• 2:03 - Blue spore bomb
• 2:15 - Stun
• 2:23 - Sticky Fungi
• 2:27 - Energy Fungi (nearly at the same time as Sticky Fungi)

After energy fungi, entire rotation repeats. While the core is exposed, Croesus' attacks are paused.

## Contribution breakdown

The player's contributions in subduing Croesus determine the amount of experience and rewards obtained - masses provide faster kills, while smaller groups provide better experience and rewards.

A minimum of 419 contribution is required in order to receive the maximum of 12 drop rolls after each encounter.[1]

Action Contribution change
Harvesting enhanced nodes +3
Harvesting normal nodes +2
Harvesting rotted nodes -2
Rotting nodes with 10 rotten fungus +20
Clearing another player's sticky fungus +10
Contributing resources to statues +2 (per resource)
Restoring statues (every xp drop) +1 (75 max per statue)
Removing Energy Fungus +5 (per tick)
Damaging Croesus' core +2 (per XP drop)
Clicking green spores on core +2
Clicking white spores on core +1
Clicking red spores on core -2

The primary source of contribution comes from removing the energy fungi - these give the most for every player and the team should usually have finished up just after the second set of these. It is recommended for 4-man teams to wait for two sets of this attack before exposing the core, which should be enough for every player to get the minimum contribution for 12 rolls. In 8-man and larger teams, it is recommended to wait for at least one set of this attack.

## 8-man encounters and masses / public instances

1. Coordination is essential for defeating Croesus. Voice chat, while optimal, way is by no means required, though in-game chat should be used for call outs at the very least. It is essential to avoid Croesus' attacks, as each failed mechanic strengthens the boss (visible as the orange bar below its health). Commonly used effective tactics include utilising the Bladed dive, (double) Escape, and/or (double) Surge abilities. The Mobile perk or Shadow's Grace relic may also be beneficial for its effect of halving the cooldown of the aforementioned abilities (note: these effects do not stack for a doubly reduced cooldown). Additionally, a dose of powerburst of acceleration can be used in case of an emergency where the aforementioned abilities need to be used back-to-back. Players with low Agility assigned as runners may find the Oo'glog saltwater spring's effects or its Ogre flask counterpart useful. Keeping one's stats high via Super restore potions or temporary boosts is an effective method to remain in the fight if one is unable to avoid certain mechanics. It should be noted again, however, that failing mechanics will empower the boss and therefore mechanics should not be ignored unless they cannot be dealt with in one way or another.
2. Before starting, each corner should assign at least 2 runners: "short" and "long". The "short" runner will run 1 corner counter-clockwise and "long" will run 2 corners counter-clockwise.
3. If there are more than 2 people per corner, it is beneficial to assign a "rotter" role that is the person who would rot 10 items to slow down carcasses.
4. In the beginning, all players gather resources from their corner by prioritising the sparkling nodes from carcasses. Everybody deposits the resources frequently except the "short" and "long" runners. As soon as the runners have 16-17 resources completed from deposit place, they go to their corresponding corner.
5. Other players continue to gather resources and put them in deposit place except the "rotter" who will rot 10 items by using the resources' left-click "Rot" option, and then use the resulting rotten fungi on the carcasses.
6. As soon as the runners get to their corners, they deposit them on the statues. In a large group, it is beneficial to delay restoring the statues until all the resources are deposited on all 4 statues, to counter unaware players who would pray too soon without coordination.
7. Energy fungi should be cleared as soon as they appear.
8. It is beneficial to pray at the same time at all 4 statues right after restoring all 4 statues at the same time. However, if it is not done, when the first statue is prayed at, this will allow others to cross the center and deposit other resources to mitigate the lack of synchronisation.
9. Once praying is finished, all players go to the middle under Croesus.
10. Click on the core when white or green spores appear. Do not click on the core skilling node when red spores appear.

## 4-man encounters

There are two options for four-man teams: the 2-1 method and the 1-2 method, each assumes you are dodging attacks throughout.

Make sure you communicate with your group which method is used prior to starting the trip. Kills on average should be roughly 6:10-6:30 with little or no mistakes while waiting for a second set of energy fungi.

### 2-1 method

1. Gather 16-17 resources from your Skilling Node (Araxyte, Dagannoth, Mole, Leviathan) at the enhanced spot. The more you have, the more of a safety net you have in case of rot.
• Around 0:12 move away from the current harvest node and wait for the first bomb at 0:15. This will allow the player to keep harvesting at the enhanced spot without interruption. Note that the northern most node for each carcass apart from the araxyte has three harvest spots each, so players aware of this can simply harvest from the edge and reposition across as needed.
• Example: The northern node at the Dagannoth carcass has three harvest points - west, north and east. If the player harvests from the west or east when the bomb lands, they can simply move east/west and continue harvesting from it instead of a regular node on it or one of the guard nodes.
• Deposit the resources in the Storage Spot.
• Gather another 16-17 resources from the node and deplete it.
• If the player clears their node fast enough and obtains enough fungi, they can try to chance a fairy ring attack to instantly skip one or two quadrants, although it is important to note that a fungi will be automatically rotted in this case, requiring an additional fungi. If the fairy ring attack is not taken, run to the designated statue after getting sufficient fungi. This can be done with any node, although it is far more consistent with Hunter, Woodcutting and Mining.
2. Run counterclockwise TWICE (skipping 1 statue, also known as the LONG RUN).
3. Remove the first Energy Fungus at 2:25 in the encounter time. Do not try to traverse around the edges of arena to deposit fungi unless done so before 2:10.
• Contribute your resources to the statue then take the resources from the Storage Spot (deposited by another player). Make sure to move one or two of your original resources to the beginning of your inventory in front of the newly withdrawn resources, as to protect them from rot as mechanics rot fungi based on whatever is on the top-left to right of your inventory.
4. Advance counterclockwise ONCE (also known as the SHORT RUN) and contribute resources to the final statue.
• Poison the creature (skilling node) with 10 Rotten Fungus in your inventory. This will usually require harvesting some from the dead guards on the side.
• Begin to restore your statue (you may need to wait for the other half of resources to be contributed by another player, just stand around and dodge mechanics, or help deplete the skilling node in your corner if the player assigned there is significantly lagging).
5. Remove the second Energy Fungus around 5:10 in the encounter time.
• Do not skip this mechanic, as removing energy fungus is crucial for contribution points. If a statue is accidentally prayed early, inform other players not to pray at their statues and wait for Croesus to recover.
6. Pray at the statue. Typically one person should call out when to do so. Statues should be ready for praying before the second set of energy fungi, but if some players are lagging behind, wait for them to near restoration. Pray regardless if they are not fixed before the slime moulds are launched.
• If you need to, 3 statues is enough to finish the fight with max stats - however, restoring a statue yourself is worth 75 contribution points.
7. Deplete the central node and defeat the boss.
• Click on white and green spores whenever they appear on the core. Do not click on red spores.

### 1-2 method

The steps for the 1-2 method are exactly the same as the 2-1 method, with 2 minor differences:

1. In step 2 you will do a SHORT run, instead of a LONG run.
• SHORT runs refer to running around counterclockwise ONCE to the next skilling node.
2. In step 4 you will do a LONG run, instead of a SHORT run.
• LONG runs refer to running around counterclockwise TWICE to the skilling node after the next.

## Trio encounters

Note: This size is only recommended when a fourth player cannot be found or all players are extremely experienced.

1. Player A starts at Fishing (northeast):
• The player gathers 15-17 algae
• The player runs a short to Hunter (northwest), contributing the algae at the statue
• The player gathers 15-17 spores, while prioritizing the non-shiny node to delay the carcass restoring
• The player deposits the spores, then gathers another set of 15-17 spores and 20 rot for both the Dagannoth and Araxxor carcasses
• The player poisons the Dagannoth carcass, then runs a short to Woodcutting (southwest), poisoning the Araxxor carcass, contributing at and restoring the statue
• After the second energy fungus, the player will pray and focus on the core while the other two players focus on praying at the other statues
2. Player B starts at Mining (southeast):
• The player gathers 15-17 calcified, depositing it in the box
• The player gathers another 15-17 calcified, ensuring the carcass has been finished
• The player runs a short to Fishing (northeast), contributing the calcified at the statue
• The player gathers 15-17 algae, ensuring the carcass has been finished
• The player runs a long to Woodcutting (southwest), contributing the algae at the statue
• The player takes the timber from the box, then runs a long back to Fishing, contributing the timber at the statue, poisons the Leviathan carcass and restores the statue
• After the second energy fungus, the player will pray, then go to the northwest statue, repair and pray, before finishing the core
3. Player C starts at Woodcutting (southwest)
• The player gathers 15-17 timber, depositing it in the box
• The player gathers another 15-17 timber, ensuring the carcass has been finished
• The player runs a short to Mining (southeast), contributing the timber at the statue
• The player takes the calcified from the box and runs a long to Hunter (northwest), contributing the calcified at the statue
• The player takes the spores from the box and runs a long back to Mining (southeast), contributing the spores at the statue, poisons the Mole carcass, restores the statue and partially prays
• The player runs a short to Fishing (northeast) and aids player B in restoring the statue
• After the second energy fungus, the player will pray, then go to the northwest statue, repair and pray, then return to the southeast statue and finish praying, before finishing the core
4. Avoid and deal with mechanics as needed on the way, restoring statues as needed.
• If someone passes out, restore all four statues and poison all carcasses if not done already.
5. Wait for a second set of energy fungi before exposing the core for additional contribution points.
6. Clear the core out, clicking on white and green spores whenever they appear. Do not click on red spores.

## References

1. ^ These values come from community testing.