Wreath of Geists

A one-mana Aura that bargains away the usual pump-spell promise: instead of a fixed bonus, the buff scales with what you have already lost. The dead creatures in your graveyard become the engine, which inverts the normal cost curve of green's combat boosts. Cards like Rancor or the various Giant Growth descendants pay full price up front for a known number; this one starts at +0/+0 and grows only as your board gets ground down, turning attrition into ammunition. That makes it a payoff for self-mill and aristocrat-style decks that want bodies in the bin anyway, where a turn-one Aura played into an empty graveyard is doing nothing, but the same card dropped on a lone survivor late can swing a stalled race outright. The Aura template carries the usual liability (two-for-one exposure to any removal aimed at the enchanted creature), and here that risk is sharpest precisely when the buff is largest, since the bigger your graveyard the more value you are stapling to a single target. It rewards a graveyard you have spent the game building and punishes you for relying on it; the size of the reward and the size of the risk climb together on the same axis.