Blink Dog

Abjure {3}(You may have an opponent cast target
noncreature, nonartifact spell in their graveyard with
a converted mana cost 3 or greater for {0}, then exile it
to reduce this creature's mana cost by {u}{u}.)
Phasing
When Blink Dog phases in, it deals X damage to
target opponent where X is equal to the number
of creatures named Blink Dog on the battlefield.
A wizards best friend.