Akniir, Venerated Lurker

Whenever a player sacrifices a permanent,
put a devotion counter on Akniir, Venerated Lurker.
{3}, Sacrifice a creature: Akniir, Venerated Lurker gets +3/+0 until end of turn.
Remove four devotion counters from Akniir,
Venerated Lurker: Add {w}{u}{b}{r}{g}.