The Last Ronin [Teenage Mutant Ninja Turtles]

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I Destroy all creatures.
II Mill four cards. When you do, return target creature card from your graveyard to your hand.
III Whenever a creature you control attacks alone this turn, put three +1/+1 counters on it. It gains trample, lifelink, and indestructible until end of turn.