Transmogrify

Point it at your own token and the removal spell becomes a launcher. This belongs to red's Polymorph lineage, alongside Polymorph itself and Indomitable Creativity: spells that answer how to get a game-ending body onto the battlefield for four mana without ever paying its casting cost. Exile a Dragon Fodder goblin, dig until you hit the one creature card in your list, and the reveal stops being random the instant your deck is built to hold exactly one monster. Note the trap in the wording, though: the target's controller is the one who gets the free creature, so pointing this at an opponent's board usually just hands them a fresh threat. This is a spell you cast on yourself, and the deckbuilding tax is the part it never prints. Run a second creature and you can no longer promise which one arrives, so the archetype demands a near-monster-free list stitched together from tokens and this spell, a construction so brittle that a single stray creature draw poisons the whole engine. That fragility is the price for turning a Goblin token into something enormous a full turn ahead of schedule, and it is why this design keeps getting reprinted with the numbers held right where they are.