Thunderblust

Persist usually reads as an insurance policy: a creature dies, comes back smaller, and you wring one last value trigger out of it before it goes for good. This design weaponizes the downside. The minus-counter that persist leaves behind is exactly what switches on trample, so the body you get back is meaner at connecting than the body you lost. A 7/2 with haste already wants to swing the turn it lands, and a 6/1 trampler that attacked last turn and came right back is not the diminished version of itself you would expect: it is the version that ignores chump blockers entirely. The toughness of 2 is the lever the whole thing pivots on. It dies to almost anything, which is the point, because dying is how it earns trample and resets the clock. The math closes neatly around persist's one-time clause, since a creature that already has its counter no longer qualifies, so the second death is permanent. You get one return, with upside attached, and then the deal expires. It is a rare case of a keyword's drawback being repurposed as the card's reward, and the fragile rear half of the stat line is engineered to trigger that exchange rather than to survive it.