Muka Muka

Triggershock—Play this card as unnamed permanent face down. You may turn it face
up when an opponent plays a creature spell.
When Muka Muka is turned face up, target creature gains -3/-3 until end of turn.
Even Duncleos'more brighter places are plagued
by evil crawlers like this. As Kha'Zhiks raised, they overrunned Starvele by thousands.