if you control two or more other lands, lair of the hydra enters the battlefield tapped.
t: add g.
xg: 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.
t: add g.
xg: 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.
