[Karat]

Not sure there would be a good way to distinguish between all other markers and OMs. I'd say just remove all or just wound markers would be simpler.

Incorporating Bats' suggestion for you:

DEATH SENTENCE SPECIAL ATTACK
Range 1. Attack 3.
When attacked by this special attack, Unique Heroesfigures may not roll more than 1 defense die and SquadCommon figures may not roll defense dice. Androids,and Undead, and Destructible Objectsfigures roll defense dice normally. If Judge Death destroys a figure with this special attack, you may immediately take a turn with any other Undead Hero you control.

For pasteability:

DEATH SENTENCE SPECIAL ATTACK
Range 1. Attack 3.
When attacked by this special attack, Unique figures may not roll more than 1 defense die and Common figures may not roll defense dice. Android and Undead figures roll defense dice normally. If Judge Death destroys a figure with this special attack, you may immediately take a turn with any other Undead Hero you control.