This clever loop turns damage into an endless chain of card stock and firepower, anchored by Niv-Mizzet, the Firemind and Illusory Ambusher. Once the Ambusher is safely granted indestructible, it serves as a willing punching bag that responds to every single point of damage by feeding your hand. Niv-Mizzet's triggered ability provides the initial spark, pinging the Ambusher to trigger a card draw, which in turn untaps or retriggers Niv-Mizzet's fiery wrath. Because the Ambusher shrugs off the lethal damage, this feedback loop sustains itself indefinitely, letting you riddle any target with near-infinite damage while drawing your entire library.