Sanctum Spirit

Indestructibility that costs cards rather than mana is a rare trade, and this creature buys it by pitching from hand instead of paying a mana tax per activation. Most bodies that shrug off destruction either bake the protection into their rules text or charge mana for each use; this one asks you to empty your hand of the artifacts, legends, and Sagas you would otherwise have deployed. That turns the 3/2 into a referendum on how much of the historic axis the surrounding deck has already committed to. A hand thin on those cards leaves you with nothing but a lifelinking body, while a hand stuffed with them yields a creature that refuses to fall to a wrath or a targeted kill spell, repeatable for as long as the supply holds. The discard cost has no cap and no mana component, so the protection scales purely with how much you are willing to spend, and the cards fueling it are ones you might otherwise be holding as dead late-game clutter. It is a deliberately conditional payoff: the lifelink keeps the creature from being useless against aggression, but the indestructibility is reserved for players whose construction has already leaned into legends and artifacts. This is a supporting piece that pays nothing back until the plan is already in motion, and its ceiling is set entirely by the hand you brought to the table.