Glacial Fortress

Land

“"Iceworld. A space trading colony on the dark side of the planet Svartos... I think there's something interesting going on there, Mel." —The Seventh Doctor”

• WotCOct 1, 2009

  As this is entering, it checks for lands that are already on the battlefield. It won't see lands that are entering at the same time (due to Warp World, for example).

• WotCOct 1, 2009

  This checks for lands you control with the land type Plains or Island, not for lands named Plains or Island. The lands it checks for don't have to be basic lands. For example, if you control Watery Grave (a nonbasic land with the land types Island and Swamp), Glacial Fortress will enter untapped.