Scuttle Gromp's W
Devour [ W ]
Cost: 90 Mana || Range: 250 || Cooldown: 20/18/16/14/12 seconds
Devours a target enemy for 4/4.5/5/5.5/6 seconds (halved duration for enemy Champions), dealing 20/24/28/32/36% [+0.04% per AP] of their maximum Health as magic damage.
Is 36% of max health on a 12 second cooldown balanced?