Birak, the Unkillable

Double-Strike, Flying, Indestructible
Creatures you control get +1/+1 and Vigilance
and creatures your opponents get -1/-1 and lose
Vigilance.
Creature spells cost {1} less to cast.
{1}{w}{r}{g},{t}: Target creature you control gets
First Strike then it fights another target creature
and if that creature dies, draw a card.