User blog comment:Emptylord/Sandbox/Random Mutation/@comment-4290320-20130830072009

Well, since I am studying biology in school and as a hobby, I do have some ideas.

Corrosive Blood: Whenever an enemy damages you, they have their armor reduced by a flat amount. Does stack.

Natural Instinct: Your first basic attack within a set duration deals a percentage of the enemy target's maximum health as physical damage.

Rapid Cell Growth: After exiting combat for a duration, you increase your health regeneration by a set amount. Bonus is lost if entering combat.

Enhanced Respiration (System): The effect of attack and movement speed slows is reduced.

Hematophogy: Your basic attacks against enemy champions deal X plus a percentage of their current health as bonus physical damage and heal you for half of the amount.

P.S. I think the last one could be a way to solve BotRK's 'op-ness'. Just an idea.