Mao, Oni Bloodlord

Mao, Oni Bloodlord has Bushido X, where X is
equal to the number of creatures with Bushido
on the battlefield (Whenever this creature blocks or
becomes blocked, it gets +X/+X until the end of turn.)
Defender, First Strike
Sacrifice a creature: Until end of turn, Mao, Oni Bloodlord loses defender.