炎跡のフェニックス
クリーチャー — フェニックス
飛行、速攻
毎ターン、炎跡のフェニックスは可能なら攻撃する。
獰猛 ― あなたのターンの戦闘の開始時に、あなたがパワーが４以上のクリーチャーをコントロールしている場合、あなたはを支払ってもよい。そうしたなら、あなたの墓地にある炎跡のフェニックスを戦場に戻す。
Illustrated by
Fate Reforged#100RareJapaneseLegality
Rulings
If Flamewake Phoenix can't attack for any reason (such as being tapped), then it doesn't attack. If there's a cost associated with having it attack, you're not forced to pay that cost, so it doesn't have to attack in that case either.
Flamewake Phoenix's last ability will check at the start of your beginning of combat step to see if you control a creature with power 4 or greater. If you don't, the ability won't trigger at all. If it does trigger, the ability will check again as it tries to resolve. If you don't control a creature with power 4 or greater at that time, the ability won't resolve. You won't get a chance to pay , and Flamewake Phoenix won't return to the battlefield.