Minimic

A Minimic is a monster found within Alice's Treasure Chamber, during the Giant Mimic fight. Two Minimics are traditionally summoned to the defense of the Giant Mimic when its health reaches predetermined intervals, and will aid the Giant Mimic by healing for 400 life points per Minimic present every second.

Any damage that is dealt to the Giant Mimic while a Minimic is alive will heal it for that amount instead of damaging it, similar to the way in which Nex's siphon attacks work.