D'Ary, the Unbound

When D'Ary, the Unbound enters the battlefield,
create a 5/5 demon creature token with flying.
This creature gets -1/-1 for each angel and
+1/+1 for each demon on the battlefield.
Sacrifice a demon: Counter target noncreature
spell unless its controller pays {2}.
"Don't cast your illusion of panic on me
'till the rope is around my neck."