Thunderbolts Conspiracy - Marvel Super Heroes - 117

Enchantment

Mana Cost: {3}{B}

Flash
Whenever a Villain you control dies, return it to the battlefield under its owner's control with a finality counter on it. That creature is a Hero in addition to its other types. (If a creature with a finality counter on it would die, exile it instead.)

Rare · Marvel Super Heroes · #117 (MSH)

Illustrated by Lucio Parrillo