Nightmare

Card Name

夢魔

Mana Cost

5

Type

Creature – Nightmare Horse

Rarity

Rare

rules Text

飛行 (このクリーチャーは飛行や到達を持たないクリーチャーによってブロックされない。)夢魔のパワーとタフネスは、それぞれあなたがコントロールする沼の総数に等しい。

Flavor Text

その蹄の響きは、夢を絶望に変えてしまう。

Legal Formats

Commander, Legacy, Modern, Pioneer, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Pauper, Standard

Rulings

(4/1/2008)
If you control 0 swamps, then the Nightmare has 0 toughness and will be put into its owner's graveyard as a state-based action right before the next player gains priority.
(10/1/2009)
Nightmare's power and toughness changes as the number of Swamps you control changes.
(7/1/2013)
The ability that defines Nightmare's power and toughness works everywhere, not just on the battlefield.
(7/1/2013)
Nightmare's ability counts all lands you control with the subtype Swamp, not just ones named Swamp.