Cherished Hatchling

A 2/1 that wants to die, which is the whole design joke. The body itself is unremarkable trade fodder; the payload is the death trigger, which converts the creature's demise into a one-turn engine that hands every Dinosaur you cast afterward a fight-on-entry clause and lets you cast those Dinosaurs at instant speed besides. That pairing matters more than either half alone: the flash grant means you can hold up the Dinosaurs as combat-trick removal, dropping a fatty in response to an attack so it fights down the attacker before damage. The hatchling is the fuse, not the payload, and it only delivers if you have the board state and the cards in hand to spend the turn it dies. That conditional setup is the constraint that keeps a snowballing fight-package honest: nothing happens until the small thing perishes and the big things follow it onto the stack. It is a build-around in the literal sense, a creature designed to make the creatures around it function as removal, and it rewards a deck that has committed to the Dinosaur curve hard enough to have something worth flashing in the moment the hatchling falls.