ウラモグの破壊者
クリーチャー — エルドラージ
滅殺２（このクリーチャーが攻撃するたび、防御プレイヤーはパーマネントを２つ生け贄に捧げる。）毎ターン、ウラモグの破壊者は可能なら攻撃する。
「エルドラージの目的が何であれ、我等の如き取るに足らないものとは何の関係も無いことだ。」――孤独な宣教師、ニルトゥ
イラスト：
Duel Decks: Zendikar vs. Eldrazi#44コモン日本語適正
裁定
Annihilator abilities trigger and resolve during the declare attackers step. The defending player chooses and sacrifices the required number of permanents before they declare blockers. Any creatures sacrificed this way won’t be able to block.
If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn’t blocked, it simply won’t deal combat damage to anything.
If Ulamog’s Crusher can’t attack for any reason (such as becoming tapped or having just entered the battlefield), then it doesn’t attack. If there’s a cost associated with having it attack, its controller isn’t forced to pay that cost, so it doesn’t have to attack in that case either.