荒廃ワーム
クリーチャー — ワーム
暴動（このクリーチャーは＋１/＋１カウンター１個か速攻のうちあなたが選んだ１つを持った状態で戦場に出る。）
荒廃ワームが戦場に出たとき、以下から最大１つを選ぶ。
• あなたがコントロールしていないクリーチャー１体を対象とする。荒廃ワームはそれと格闘を行う。
• マナ能力でない起動型能力を持つ土地１つを対象とし、それを破壊する。
Illustrated by
Ravnica Allegiance#200MythicJapaneseLegality
Rulings
You may choose neither mode for Ravager Wurm’s triggered ability. In this case, the ability is removed from the stack with no effect.
If the target of Ravager Wurm’s first mode isn’t a legal target as that ability resolves, or if Ravager Wurm has left the battlefield, neither creature will deal or be dealt damage.
Activated abilities contain a colon. They’re generally written “[Cost]: [Effect].” Some keyword abilities are activated abilities and will have colons in their reminder text. An activated mana ability is one that produces mana as it resolves, not one that costs mana to activate.
Riot is a replacement effect. Players can’t respond to your choice of +1/+1 counter or haste, and they can’t take actions while the creature is on the battlefield without one or the other.
If a creature entering the battlefield has riot but can’t have a +1/+1 counter put onto it, it gains haste.
If you choose for the creature to gain haste, it gains haste indefinitely. It won’t lose it as the turn ends or as another player gains control of it.