Otherworldly Strength

Choose target creature you control. You mill four
cards, then that creature gets +X/+X until end
of turn, where X is the number of cards in your
graveyard. (To mill four cards, put the top four cards
of your library into your graveyard.)
Delirium — If there are four or more card types
among cards in your graveyard, it also gains
trample until end of turn.