# Augmented Seren godbow (blood)

For this item's standard variant, see seren godbow (blood).
For this item's (un)dyed variants, see undyed, Ice, Shadow, Barrows, Third Age.

The blood-dyed augmented Seren godbow is a Seren godbow that has been augmented and dyed - it is otherwise the same as the undyed variant. The dyeing process is irreversible. It can be made by using an augmentor on a Seren godbow (blood), or by using blood dye on an augmented Seren godbow.

Augmented dyed equipment do not feature the cogs associated with most augmented items (they look identical to non-augmented versions). Disassembling augmented dyed items does not return the dye. Dying in unsafe player-versus-player (PvP) combat with this item drops a broken Seren godbow - the dye, augmentor, and gizmos are lost.

Weapon gizmos charged with perks can be used to enhance the item's abilities. As a two-handed slot item, the Augmented Seren godbow (blood) can hold 2 gizmo's, allowing up to 4 perks (2 perks each).

Using this item in combat can gain experience to increase its level. Levelling the weapon will have no effect on its ability in combat, but it will improve the experience and materials gained for disassembling it.

The Augmented Seren godbow (blood) uses charges stored in the universal charge pack. When the charge pack runs out of charges, the item loses stats and gizmo effects, and can also no longer gain any equipment experience. Function will resume when the pack is recharged with divine charges.

## Special attack

The Seren godbow's special attack, Crystal Rain.
 This article has a calculator here.Calculators determine experience and costs based on real-time prices from the Grand Exchange Market Watch.

Seren godbow has a special attack called Crystal Rain which costs 30% adrenaline. Five arrows are launched into the air with the first arrow always landing and dealing damage one tick before the remaining arrows. If the attack is successful, there is a 30 second cooldown before it may be used again. If the attack misses, then the remaining four arrows will also miss, but no cooldown penalty is incurred, allowing the player to use the special attack again.

The first arrow always has an opportunity to land; the others may not have this opportunity as they need to land on a game square occupied by the target.

Arrow Ability Damage Range
1 80%-200%
2 80%-240%
3 80%-213%
4 80%-186%
5 80%-160%
All 5 arrows of Crystal Rain (special attack of Seren godbow) hitting Araxxi.

Using the special attack against an NPC which takes up a lot of game squares will increase the likelihood that multiple arrows will hit, potentially dealing extremely high damage. The determination of the number of hits a monster receives is described as follows. First, if the special attack hits, the first arrow will always hit. Then, the remaining four arrows will be determined. The center of an NPC is chosen and the radius is calculated as the floor of half of the NPC size. A square within the radius from the center of the NPC is chosen as the center of the special attack. A 5x5 area centered at that square is where the remaining four arrows will be chosen. A random square is chosen from this area, and then random squares chosen, without duplicates, until there are four arrows, or when it fails to find a non-duplicate ten times. The number of squares chosen that also lie on the NPC squares are the number of arrows that hit. Targets that block the player from running through the game squares occupied by the target (such as Araxxi or Astellarn) always have the center of the monster as the center of the special attack. To add, there are targets such as Telos, the Warden on phase 5 and The Sanctum Guardian that are not classified as an NPC that blocks the player; instead, it is the environment (for these NPCs) that prevents the player from accessing the game squares occupied by the NPCs.

### Recommended bosses

The Seren godbow is recommended for the following boss fights as its special attack can deal very high damage per use, depending on the size of the target. In general, it is recommended for bosses that occupy at least 3x3 game squares.

The Seren godbow special attack does 50% more damage within Death's Swiftness.

### Not recommended bosses

The Seren godbow is not recommended for the following boss fights as its special attack does not deal high damage at all.

### Damage analysis

The probability of a certain number of arrows hitting given the monster size is shown in the table below.

Probability of number of arrows that land based on size of NPC
NPC Size in squares
Arrows that land 1x1 2x2 3x3 4x4 5x5 6x6 7x7 8x8 9x9 10x10 11x11
1 84.0% 47.3% 14.4% 14.1% 4.5% 8.3% 2.6% 5.7% 1.7% 4.3% 1.3%
2 16.0% 42.0% 39.8% 32.7% 19.3% 22.2% 12.4% 16.8% 9.1% 13.5% 7.1%
3 0.0% 10.0% 34.2% 32.4% 32.4% 28.1% 25.0% 24.0% 20.3% 20.8% 17.1%
4 0.0% 0.7% 10.6% 17.0% 28.2% 23.1% 27.7% 22.7% 24.7% 21.0% 21.9%
5 0.0% 0.0% 1.0% 3.8% 15.5% 18.2% 32.3% 30.8% 44.1% 40.4% 52.6%
Expected number of arrows 1.16 1.64 2.44 2.64 3.31 3.20 3.75 3.56 4.00 3.80 4.17

Probability of number of arrows that land based on size of NPC
NPC Size in squares
Arrows that land 1x1 2x2 3x3 4x4 5x5+
1 84.0% 47.3% 14.4% 1.0% 0.0%
2 16.0% 42.0% 39.8% 10.6% 0.0%
3 0.0% 10.0% 34.2% 34.2% 0.0%
4 0.0% 0.7% 10.6% 39.8% 0.0%
5 0.0% 0.0% 1.0% 14.4% 100.0%
Expected number of arrows 1.16 1.64 2.44 3.56 5.00

The expected number of arrows are the average amount of arrows that land on a target of a specific size if repated many times.

### Damage calculation

Consider a 5x5 (size 5) NPC that is non-blocking. Finding the average damage done by the Seren godbow special attack can be done as follows. Note that the following assumptions will be made for this example:

To find the average damage done on a 5x5 in this example, the individual probabilities for the chance of each arrow to land are needed.

${\displaystyle \sum \limits _{n=1}^{5}p_{n}\cdot d_{n}}$

• ${\displaystyle p_{n}}$ is the probability of ${\displaystyle n}$ arrows landing
• ${\displaystyle d_{n}}$ is the average damage associated with ${\displaystyle n}$ arrows landing (in this example, as each arrow's damage is assumed to be uniform throughout their respective range, the average of the ability damage range is used for each arrow).

{\displaystyle {\begin{aligned}\sum \limits _{n=1}^{5}p_{n}\cdot d_{n}&=p_{1}\cdot d_{1}+p_{2}\cdot d_{2}+p_{3}\cdot d_{3}+p_{4}\cdot d_{4}+p_{5}\cdot d_{5}\\&=0.045\cdot {\frac {1}{2}}\left[(80\%+200\%)\right]\\&\quad +0.193\cdot {\frac {1}{2}}\left[(80\%+200\%)+(80\%+240\%)\right]\\&\quad +0.324\cdot {\frac {1}{2}}\left[(80\%+200\%)+(80\%+240\%)+(80\%+213\%)\right]\\&\quad +0.282\cdot {\frac {1}{2}}\left[(80\%+200\%)+(80\%+240\%)+(80\%+213\%)+(80\%+186\%)\right]\\&\quad +0.155\cdot {\frac {1}{2}}\left[(80\%+200\%)+(80\%+240\%)+(80\%+213\%)+(80\%+186\%)+(80\%+160\%)\right]\\&=(0.045\cdot 140\%)+(0.193\cdot 300\%)+(0.324\cdot 446.5\%)+(0.282\cdot 579.5\%)+(0.155\cdot 699.5\%)\\&=481\%\end{aligned}}}

### Interaction with the Ammunition slot

Furthermore, the ammuntion slot is ignored for arrows 2 to 5. This means that if black stone arrows, dragonbane arrows, etc. are used, only the first arrow applies the effect from the ammunition slot and the damage and effect from arrows 2 to 5 are equivalent to having nothing in the ammuntion slot.

However, if the Seren godbow is stored inside the Essence of Finality amulet(or) and the Crystal Rain special attack is cast with a weapon able to make use of the enchanted bolt effects, all 5 arrows of Crystal Rain are affected.

## Disassembly

The Augmented Seren godbow (blood) can be levelled up by using it. The equipment experience required for each level and the effect of disassembly is as follows:

Table of experience and effect
Item
level
Item
experience
Invention experience (tier 92) Item effects
Disassembly Siphon GP/XP
1 0 0 N/A N/A
2 1,160 10,620 Disassembling this item has a 50% chance to return installed gizmos.
3 2,607 31,860 Disassembling this item gives double materials.
4 5,176 63,720 10,620 21.47 Disassembling this item never gives junk.
5 8,286 127,440 31,860 7.16 This item drains 10% less charge when used.
6 11,760 169,920 63,720 3.58 Disassembling this item gives triple materials.
7 15,835 233,640 127,440 1.79 Disassembling this item gives an extra random uncommon material.
8 21,152 318,600 169,920 1.34 Disassembling this item returns all installed gizmos.
9 28,761 446,040 233,640 0.98 Disassembling this item gives quadruple materials.
10 40,120 637,200 318,600 0.72 Disassembling this item gives the maximum extra Invention XP.
11 57,095 446,040 0.51 N/A
12 81,960 637,200 0.36 Siphoning this item gives the maximum extra Invention XP.
13 117,397 0.18 Siphoning this item has a 50% chance to not consume the siphon.
14 166,496 This item drains 12.5% less charge when used.
15 232,755 This item can now be used with an Equipment separator.
16 320,080 0.00 Siphoning this item no longer consumes the siphon.
17 432,785 Using the Equipment separator on this item has a 25% chance to not consume the separator.
18 575,592 This item drains 15% less charge when used.
19 753,631 Using the Equipment separator on this item has a 50% chance to not consume the separator.
20 972,440 Helpful perks will activate 10% (multiplicative) more frequently. See Perk benefits for a list of perks that are known to be affected.

## Update history

The update history project is a work-in-progress – not all updates to this topic may be covered below. See here for how to help out!

## Notes

1. ^ a b c d Approximations for non-Death's Swiftness columns include:
For the Death's Swiftness column, values are obtained by taking the non-Death's Swiftness values and multiplying by 1.5. Damage caps are ignored for this part of the approximation. See calculator at top of section for more precise values.
2. ^ Telos is 10x10 during phase 5.
3. ^ Vorago is blocked on phases 5, 10 and 11 and during "The End" special attack.
4. ^ Raksha is blocked on phase 4.