Xenom - The Glutton {Concept}

I come to you all with an idea, which i would like feedback for :) this is just kind of a fun idea I had.. (I also had 1 where he would eat jungle camps, and absorb their attributes to become forms based on what he eats)

Xenom - The Glutton

P: Gluttony: As Xenom defeats entitys, he will consume their essence and they will become a part of him granting him a portion of the stats that they had while they lie within his stomach. Additionally, large monsters from camps will grant a medium increase in stack, and a devour of a large monster, such as Baron or Elder dragon, would grant an Immense increase in stacks.

Q: Essence Expulsion - As Xenom kills entitys he devours their essence like a fine meal, while over time he fully digests the essence of the creatures he swallows and devours, he may regurgitate and spit out some essence, which will on hit, also apply a sort of acidic burn from his stomach fluids.

W: Convulsional Entity - Xenom exerts 1/4th of his stacks to manufacture an entity to help him consume and also fight, the entity is more powerful depending on the amount of stacks that go into it, reactivating the ability will cause him to be locked into a stationary position while he redevours the entity. If the entity dies, he loses the stacks used to create it.

E: Metabolism - slowly consumes stacks to greatly increase health regeneration while out of combat, while in combat will slowly consume stacks to give Xenom a boost to his stats while active.

R: Dark Eruption - Xenom Intensively focuses all of the essence he's collected and after a period (maybe 2 seconds? I think nunus is around 3-5 seconds so it should be a little shorter than Nunus) He will detonate with # AP & # Stacks(x3?) killing himself in the process and using EVERY STACK he has and also leaving a acidic effect on players. ALTERNATIVELY: While dead, Xenom can activate R, consuming all his stacks, to return to life in a slowly,in a restructural manner, but would only be castable within 5 seconds of death.

I see this being a mixture of Zac, and Xerath.. a humanoid yet magical character that color scheme would be basically black, a sludgy black, He would feature void characteristics and his energy or ability colors would consist of a blackish white combination color.

This would be interesting to say in the lore, this was an entity that Kaisa tried to hunt in the void but could never manage to kill or find. Could give him interactions with the other void creatures, or associates of the void. This was just a little fun idea i thought of, just posted it because I can :)