Transfigure

Transfigure is a rare Necrobinder skill costing 1 Energy that adds Replay to a card in your Hand at the cost of extra Energy, then Exhausts. Replay causes the targeted card to be played twice, effectively doubling the effect of your most powerful card at a premium Energy cost.

Transfigure is devastating when paired with End of Days for doubled Doom application, or Time's Up to deal massive execution damage twice. Banshee's Cry with Replay can wipe entire enemy formations, and even targeting Blight Strike doubles both its damage and Doom application.

In the Necrobinder Doom archetype, Transfigure turns already-powerful finishers into game-ending plays. Against multi-phase bosses like Doormaker and Test Subject #C10, doubling a key card at the right moment can skip entire phases. The Exhaust clause means you get one shot per combat, so timing is everything.