Yokai

Bushido 5, Haunt 2
All Ghosts have Bushido 5
All Ghosts have Haunt {x} where {x} is their
mana cost minus 2
All Ghosts can only be blocked by one creature
{5}Destroy target creature Yokai gains {x}
+1/+1 counters until end of your turn where {x} is target creatures toughness.