Lair of the Hydra (Dungeon Module) [Dungeons & Dragons: Adventures in the Forgotten Realms]

If you control two or more other lands, “Hydra Nest” enters the battlefield tapped.

{T}: Add {G}.

{X}{G}: “Hydra Nest” becomes an X/X green Hydra creature until end of turn. It’s still a land. X can’t be 0.