Kotoro Tatsumi, Idol Stitcher

Kotoro Tatsumi, Idol Stitcher gets +X/+0, where X
is the greatest power among creature cards in
all graveyards.

Whenever Kotoro attacks,
each player mills a card.

During each of your turns, you may play a land and cast a spell from among cards in graveyards that
were put there from libraries this turn.