Phase Leaf

Equipped creature gets +3/+0 and has first strike.
Rift (Whenever you discard a card you may exile it,
if you do equipped creature deals X damage to all
players, where X is half the converted manacost of
the spell exiled, rounded down.)
Exile all creatures damaged by equipped creature.
At the end of combat, put a +1/+1 counter
on equipped creature for each creature exiled.
Equip: Discard a card