Raptor Hatchling

Enrage flips the usual instinct around a fragile body. Small creatures normally want to duck combat and dodge burn; this one converts a point of damage into a 3/3 green Dinosaur with trample, a body several times the size of the 1/1 that generated it. That reversal is what the card is trading on. Answer the hatchling with any damage, whether combat, a ping, or a burn spell, and you hand over a better creature than the one you killed, so the opponent faces a genuine dilemma: leave a 1/1 alone or overpay to remove a thing that punishes the removal. The clean outs are the ones that never deal a point: exile, edicts, bounce, or -X/-X effects that shrink it without triggering enrage. Any damage from any source fires the ability, which means your own fight spells and combat tricks feed it too. The checking mechanism is the 1/1 frame itself: one point of damage kills the hatchling, so it trades up exactly once instead of grinding out an assembly line of tokens. Squeezing multiple Dinosaurs out of it requires propping up its toughness first, usually with a buff or a shield. What the design does is hand red a slice of go-wide value that usually lives in green or white, packaging a body that asks the opponent to spend removal carefully and prices in a 3/3 as the penalty for getting it wrong.