Hall of Storm Giants (AFR-257) [Adventures in the Forgotten Realms]

If you control two or more other lands, this land enters tapped.
: Add .
{5}: Until end of turn, this land becomes a 7/7 blue Giant creature with ward {3}. It's still a land. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)