Gluttony

Gluttony (暴食者) is a Unique Skill that is the evolved form of Unique Skill Predator created by combining it with the Unique Skill Starved.

Sub-Skills
Gluttony keeps four of the five original abilities of Predator (the remaining "Analysis" being transferred to Great Sage instead), the stomach capacity doubled, and these three Sub-Skills were added:
 * Predation (捕食): Absorbs the target into the body. If the target is conscious, however, the success rate greatly decreases. The affected targets include but aren't limited to: organic matter, inorganic matter, skills, and magic. As a part of Gluttony, Predation can now be used from a far greater range.
 * Stomach (胃袋): Where all absorbed targets are stored. Items produced via Analysis can also be stored. Anything that is stored in the Stomach is not affected by time. As part of Gluttony, Stomach's capacity is doubled.
 * Mimicry (擬態): Replicates the absorbed target's appearance. The skills and abilities used by the target can also be used. However, this depends on the successful analysis and acquisition of relative information regarding the target.
 * Isolation (隔離): Harmful materials or unnecessary things for analysis can also be stored. They will be used to replace magic energy.
 * Corrosion (腐食): The ability to decompose the target in conjunction with Predation. It also has the ability to add the abnormal condition of decomposition. There is a chance of acquiring an ability after consuming only a part of a target's body. However, the chance of that happening is less than consuming the whole body.
 * Receive (受容): It is possible to acquire skills from the subordinates under the user's influence. The original owner of the received skill will not lose the skill. Magic and knowledge cannot be transferred.
 * Provide (供給): The user can grant an ability to the subordinates under the user's influence or linked to the user's soul. It can only provide skills that the target is compatible with.

Trivia

 * In Last Cloudia, Rimuru uses this as one of his Abilities.