your lands gone now

: Target land becomes a 1/1 creature until end of turn. It's still a land. : Creatures you control get +3/+3 and gain trample until end of turn.

Other white creatures get +1/+1. Nonwhite creatures get -1/-1. Pay 2 life: Return Crovax to its owner's hand.

Flying (This creature can't be blocked except by creatures with flying or reach.) Other black creatures get +1/+1. Nonblack creatures get -1/-1.