Displacer Beast

The Displacement ability is the whole engine here, and it points at the enters-the-battlefield trigger rather than at the board. At , returning a 3/2 to hand costs more than the creature does to cast, so as a combat trick it is a losing exchange: that was never the intended use. Each re-cast reruns the venture, turning the card into a repeatable dungeon-crawl button that clears rooms one activation at a time. Most cards with venture give you a single step and move on; this one is built to be looped, spending mana to buy progress toward completing a dungeon or descending all the way through the Tomb of Annihilation. The tension is deliberate: because the bounce costs more than the body, you only want to pick the beast up and replay it when the venture progress matters more than the tempo you spill doing it. It borrows the self-bounce recursion trick blue has leaned on since the earliest days to reset a useful enters-the-battlefield effect, and welds it to a mechanic that measures its payoff in the number of times you trigger it rather than in one flashy result. The flavor closes the loop cleanly: a beast that blinks out of the fight and reappears somewhere further along is exactly the motion the dungeon menu rewards.