Jade-Cast Sentinel

Bottom-of-library removal is a rare shape for graveyard interaction: it neither exiles (the usual clean answer) nor returns to hand, but tucks a single card under its owner's deck, pushing its return an entire library away. That distinction is the reason to run this over a broad exile effect. Against recursion engines and flashback-style value, exile can backfire when the target rewards being exiled, and hand-return just resets the clock; sending a card to the bottom denies it without handing it back and buys real time. The repeatable, targeted design (two mana and a tap per use) makes this a grind rather than a sweeper: it picks off one card at a time, so it answers a keystone piece better than it answers a stocked yard. The 1/5 reach body is the honest half of the package: a colorless wall that walls fliers and ground creatures alike while the graveyard hook chips away. And the colorless cost is the whole point, letting any archetype fold incremental graveyard interaction onto a defensive body without warping a manabase toward one color's hate suite.