Master Yi

First Strike
When you play an instant or sorcery, remove it
from play instead of sending it to the graveyard.
At your upkeep, you may send any number of
your removed instants or sorceries to the
graveyard to give me +X/+0, where X is equal to
the number sent.
Limit Break (Transform me when conditions are met.
I keep all counters when flipped.)I have dealt 12+
damage to a creature or player.