Soul Tithe

Removal that bills the opponent rather than killing the thing outright, and the elegance is in how the tax scales with what it sticks to. Slap it on a one-drop and the recurring upkeep payment is a rounding error; slap it on a six-mana bomb and you have effectively asked your opponent to keep paying six every turn or lose the permanent. The aura never actually destroys anything: it sets up a standing ransom, which means it answers indestructible threats, regenerators, and anything that shrugs off conventional removal, because sacrifice cares about none of those. The friction it creates is a tempo squeeze more than a clean two-for-one. A defter opponent can simply pay once and untap into a board that has now outpaced your two-mana investment, and against a permanent with low mana value it borders on doing nothing. White does this kind of conditional, opponent-taxing answer better than the color usually gets credit for: rather than spending its own resources to erase a problem, it forces the other player to keep spending theirs to keep one. The cleanest use is on a high-cost permanent your opponent cannot afford to feed every turn, where the upkeep trigger compounds into a hard choice each cycle and the aura quietly drains them out of the game.