Instant, G (1) Until end of turn, target land becomes a 3/3 creature that's still a land.1 Irony is getting walked on by the earth instead of the other way around.
Illus. Rebecca Guay
8/1/2008: A noncreature permanent that turns into a creature is subject to the "summoning sickness" rule: It can only attack, and its {T} abilities can only be activated, if its controller has continuously controlled that permanent since the beginning of his or her most recent turn.