Pitiless Vizier

Four power on a two-toughness frame is a body that dies to almost any burn spell pointed at it and loses most combat trades it walks into, a poor return on four mana until the trigger reframes the fragility. Cycling or discarding a card flips this from a creature that dies to a Shock into one that pushes through blockers and burn alike for the turn, and the fuel is the same card-filtering action a black graveyard or discard build was already spending. The leash is deliberate and easy to overlook: indestructible does nothing about a zero-toughness state, so a minus-to-toughness effect, a sacrifice edict, or a bounce spell still answers it cleanly. It also asks for repetition rather than a single payoff. One cycle buys one turn of protection; keeping the Vizier online across a long game means a steady supply of discard fuel, which makes it less a single combat trick than a tax on how your hand empties. The design sits in the lineage of payoff creatures that convert a deck's incidental engine (here, the cheap card selection discard-matters builds run anyway) into a recurring combat threat, paying out only as long as the engine keeps turning.