Stratus Dancer
From Commander 2019 set
Stratus Dancer
Creature — Djinn Monk
2/1
Flying
Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When this creature is turned face up, counter target instant or sorcery spell.