Trained Pronghorn
Discarding a card to make a 1/1 unkillable in combat is a trade that almost never balances: you are spending a whole card to preserve a creature that contributes nothing back. That math reads like the entire problem with this antelope, but it misreads the design. The cost was built for a block obsessed with the graveyard, the back half of a stretch where filling the bin on purpose was the whole point. Read against that backdrop, the discard stops looking like a tax and starts looking like the product: a repeatable, no-mana way to pitch Wonder, Anger, or a madness card at instant speed, with damage prevention as the pretext for pulling the lever. Crucially, prevention effects can be activated whenever you have priority, so nothing about this requires combat or even anticipated damage. You can attack, pass, hold up an end step, and feed the graveyard on your own terms; the body never has to risk itself. The trouble is that the outlet competes with cleaner enablers that do the same job without stapling themselves to a fragile creature you also paid two mana to deploy, and the prevention clause only protects this creature, so it can never be pointed at something worth keeping alive. What scans as clever block synergy plays as a footnote: a free discard engine wearing a body that adds nothing once the engine is running.
