Kha'Zix, Voidreaver

Evolve

When Kha'Zix evolves you may have him fight target creature, if Kha'zix destroys that creature you may have him phase out

If Kha'Zix has 2 +1/+1 counters then he has first strike, if he has 4 +1/+1 counters he has flying, if he has 6 +1/+1 counters he has double strike