マルドゥの心臓貫き

強襲 ― マルドゥの心臓貫きが戦場に出たとき、このターンにあなたがクリーチャーで攻撃していた場合、クリーチャー１体かプレイヤー１人を対象とする。マルドゥの心臓貫きはそれに２点のダメージを与える。

Mardu Heart-Piercer

Raid — When this creature enters, if you attacked this turn, this creature deals 2 damage to any target.

Jumpstart 2022

Raid — When Mardu Heart-Piercer enters the battlefield, if you attacked this turn, Mardu Heart-Piercer deals 2 damage to any target.

Khans of Tarkir

Raid — When Mardu Heart-Piercer enters the battlefield, if you attacked with a creature this turn, Mardu Heart-Piercer deals 2 damage to target creature or player.

Duel Decks: Speed vs. Cunning

Raid abilities care only that you attacked with a creature. It doesn't matter how many creatures you attacked with or which player, planeswalker, or battle those creatures attacked.

Raid abilities evaluate the entire turn to see if you attacked with a creature. That creature doesn't have to still be on the battlefield. Similarly, the player, planeswalker, or battle it attacked doesn't have to still be in the game or on the battlefield.