Lair of the Hydra

多头蛇蜥巢穴 (Lair of the Hydra) (zhs)

Land
If you control two or more other lands, Lair of the Hydra enters the battlefield tapped.
: Add .
: Until end of turn, Lair of the Hydra becomes an X/X green Hydra creature. It's still a land. X can't be 0.