"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

「アイスワールド。惑星スヴァルトスの裏側にある宇宙貿易港……メル、あそこには何かがありそうだ。」
——７代目ドクター

氷河の城砦

あなたが平地や島をコントロールしていないかぎり、氷河の城砦はタップ状態で戦場に出る。
{T}：{W}か{U}を加える。

Glacial Fortress

Glacial Fortress enters tapped unless you control a Plains or an Island.
{T}: Add {W} or {U}.

Bloomburrow Commander

Considered the greatest battle in history, Operation: Anchorage showcased the effectiveness of the winterized T-516 power armor.

Fallout

Glacial Fortress enters the battlefield tapped unless you control a Plains or an Island.
{T}: Add {W} or {U}.

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).

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.