Planebound Accomplice

For one red mana, a planeswalker card leaves your hand and enters with its starting loyalty intact, resolves a single activation, then gets sacrificed at the beginning of the next end step. The value is entirely front-loaded: you are renting one loyalty ability, so the targets that matter are the ones whose first tick does something durable on the turn it arrives. A token-maker that leaves bodies behind, a walker whose plus generates a permanent, an ultimate reached through some other loyalty trick; all of these outlast the sacrifice because their output is not the walker itself. The 1/3 frame is deliberate. This is not a beater; it is an engine that wants to sit back, absorb a hit, and burn through a hand of expensive planeswalkers as if each one cost a single red rather than four or five. The forced sacrifice is the whole balancing act: without it, this would be free ramp into a permanent superfriends board, so instead you buy the activation and forfeit the card. That constraint quietly rewrites what a planeswalker is worth in the deck. It pushes toward walkers with immediate, standalone impact and away from grindy loyalty accumulation, since anything you were planning to protect and tick up over several turns gets no protection at all here. The result is a narrower and stranger deckbuilding demand than the generic "cheat expensive things into play" line the card superficially resembles.