Kythleo, Son of War

+1: Kythleo becomes a 2/2 creature with indestructible until end of turn. You may have Kythleo fight target creature you don't control.
-1: Deal one damage to target creature. That creature can't block this turn.
-7: You get an emblem with "Creatures you control gain first strike, and creatures that enter the battlefield gain Impulse 1."