# Ushabti

Ushabti (both singular and plural, despite common use of adding an "m" for the latter) are containers used to trap the souls of Slayer monsters used to fill the Slayer Codex. When killing slayer monsters while holding an empty ushabti in the inventory, it has a chance to capture the creature's soul and become filled. The filled ushabti should then be taken to the Sunken Pyramid in Menaphos where they can be placed in either the Chest of Souls or in a dungeon hotspot.

Doing either one of these will count towards filling the Slayer Codex, and therefore count towards fulfilling the requirements for the master quest cape and the trimmed completionist cape. This will consume the full ushabti, meaning that the player will need to obtain another soul should they wish to place it elsewhere.

If placed in the Chest of Souls, Slayer experience will be granted. The first soul of a creature placed in the chest awards the full Slayer experience and 250 Menaphos reputation in the active district, with each additional soul awarding 25% of the experience only. Turning in all 161 souls at least once will give a total of 1,786,125‬ Slayer experience and 40,250 reputation. If multiple filled ushabtis are held in the inventory, they will be placed in the chest one at a time in the order they are held in the inventory.

Alternately, placing a filled ushabti in a dungeon hotspot spawns a copy of the creature which will respawn until removed. In order to do this, the player must enter the dungeon in building mode. Doing so awards the same experience as adding more souls of the same type to the Chest of Souls after the first one, granting 25% of the initial value. Creatures within the dungeon cannot be used to fill an ushabti.

At least 110 ushabtis are required for the master quest cape, and at least 161 are required for the trimmed completionist cape. 145 souls are obtainable at Slayer level 99.

Number of
unique souls
Minimum level
required
Free ushabti
from Faiza
Remaining ushabti required
(Cost in Slayer points)
110 99 25 85 (1700)
161 117 43 118 (2360)

An ushabti can be upgraded into a cursed ushabti by combining it with cursed amascut sand, which has a higher chance of capturing a creature's soul.

If a player has both a binding contract and ushabti in their inventory, the ushabti will be used if it activated. Otherwise the binding contract will be used.

## Obtaining

Up to 50 ushabti can be obtained for free by speaking to Faiza, depending on the player's Slayer level. At level 99 (which is required to enter the Sunken Pyramid), 25 will be given out. At each level above 99, an additional one can be obtained from her, while an additional 4 can be obtained at level 120. Whenever Faiza is talked to, she will give you as many as you are owed before proceeding with normal dialogue - you are not penalised for claiming ushabti below level 120 Slayer.

For example, if you first enter the pyramid at level 104 Slayer, Faiza gives you 30 ushabti; if you next speak to her at level 107 Slayer, she will give you 3 ushabti; and if you next speak to her at level 120 Slayer, she will give you the 17 remaining ushabti.

Ushabti can also be purchased from Slayer Masters for 20 slayer points each, and are a possible reward from the Rush of Blood D&D, the Motherlode Maw, and by exchanging crystal motherlode shards with Wythien.

## Chance of capturing a soul

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Result
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The chance of capturing a soul can be calculated as such:[1]

Steps

After each step, truncate the resulting number (remove any decimal places).

1. Calculate the base target from the difference between the player's Slayer level (base level, ignore boosts) and the monster's Slayer level:
• If the player's Slayer level is lower than the monster's Slayer level, set target to 1,000.
• Otherwise, set target to ${\displaystyle 5\times (player-monster)^{2}}$ - i.e. square the difference, then multiply by 5.
• Note that some monsters (primarily those with no Slayer level required to damage) have a faux Slayer level applied for the purpose of calculating ushabti capture chance. These levels are listed on Slayer Codex, and are provided in the calculator below.
2. If the monster is the player's current Slayer assignment OR the player has 120 Slayer:
• If the player has a corrupted slayer helmet equipped or has it placed in the tier 3 slayer lodge on Anachronia, multiply target by 1.05.
• For clarity, the corrupted helm is active if the player is 120 Slayer but not on-task.
3. If the monster is not the player's current Slayer assignment AND the player does not have 120 Slayer, halve target, capping it at a minimum of 1,000 (i.e. set target to ${\displaystyle {\text{max}}(1000,target/2)}$).
4. If the player is using a cursed ushabti, multiply target by 1.5.
5. Any additional boosts, such as the 10% Summer Escape boost, are added here (multiply target by 1.1).
6. Finally, roll an integer between 0 and 500,000. If roll is below target, the soul is captured.
• This effectively makes target the numerator of a fraction where 500,000 is the denominator.
Mathematically

Alternatively, purely mathematically:

{\displaystyle {\begin{aligned}catch\ numerator&={\Bigg \lfloor }{\bigg \lfloor }{\Big \lfloor }{\text{max}}(1000,{\big \lfloor }{\text{max}}(1000,base)\times helmet{\big \rfloor }\times task){\Big \rfloor }\times cursed{\bigg \rfloor }\times limited{\Bigg \rfloor }\\catch\ chance&=catch\ numerator/500,000\\\\{\mbox{where}}&\\\\player&={\mbox{Player Slayer level}}\\monster&={\mbox{Monster Slayer level}}\\base&={\begin{cases}5\times (player-monster)^{2},&{\mbox{if }}player>monster\\1000,&{\mbox{otherwise}}\end{cases}}\\helmet&={\begin{cases}1.05,&{\mbox{if on-task or level 120 Slayer and a corrupted slayer helm is active}}\\1,&{\mbox{otherwise}}\end{cases}}\\task&={\begin{cases}1,&{\mbox{if on-task or level 120 Slayer}}\\0.5,&{\mbox{otherwise}}\end{cases}}\\cursed&={\begin{cases}1.5,&{\mbox{if using a cursed ushabti}}\\1,&{\mbox{otherwise}}\end{cases}}\\limited&={\begin{cases}1.1,&{\mbox{if a limited time event (e.g. Summer Escape) is active}}\\1,&{\mbox{otherwise}}\end{cases}}\end{aligned}}}

## 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!
• ninja 26 October 2020 (Update):
• Monsters with multiple variants will now consistently spawn as those variants when newly placed in the Personal Slayer Dungeon.
• This includes bears, blue dragons, cave crawlers, banshees, crawling hands, infernal mages, aberrant spectres, kurasks, desert lizards, zygomites, suqah, spiritual warriors, rangers and mages, jadinkos and tormented demons.
• patch 4 December 2017 (Update):
• The capture chance bonus at 200 million Slayer XP is changed to trigger at level 120 Slayer instead, or 104,273,167 XP. There is no bonus at 200 million anymore.
• patch 31 July 2017 (Update):
• Emptying an ushabti when carrying multiple now correctly empties the one selected, rather than the first ushabti in the player's backpack.
• patch 17 July 2017 (Update):
• Individual ushabti that contain a soul can now have the soul emptied via a 'Release' option.
• patch 3 July 2017 (Update):
• There is now an increased chance to receive a creature's soul if the player has 200 million Slayer XP.
• A three-second delay has been added between catching souls for the Slayer Codex.
• patch 12 June 2017 (Update):
• Icefiends on Ice Mountain now drop souls that can be collected by Ushabti Jars.

## Trivia

• Ushabti are figurines that were placed in ancient Egyptian tombs to act as servants in the afterlife.

## References

1. ^ Jagex. Mod Shauny's Twitter account. 6 August 2019. (Archived from the original on 6 August 2019.) Mod Shauny: "So with @JagexDaze's blessing I've worked with @RSWiki to bring you a calculator to help you figure out your actual chance to capture a Slayer creature in your Ushabti!"