Aura Flux
Most enchantment hate destroys; this taxes. The distinction is the whole design. Rather than blowing up the offending permanent outright, it bolts an upkeep cost onto every other enchantment on the board (notably exempting itself, so the controlling player never has to pay to keep the lock running), turning each opposing enchantment into a recurring drain that a player either keeps feeding or lets slip away. That asymmetry is its sharpest edge: against a deck stacking three or four enchantments, the tax compounds into a tempo problem nothing can pay through, while an opponent running a single key piece simply absorbs the cost. It is attrition rather than removal, which means it works against permanents that ordinarily dodge a single answer (the ones that recur, the ones protected by hexproof-style clauses, the ones that are too cheap to bother spot-removing). The trade-off is that it is slow and indiscriminate among its targets: it never kills anything on its own, it punishes an opponent's enchantments and your own additional ones equally, and a patient player with open mana keeps paying. This is the soft-lock approach to a permanent type, the same structural idea that later showed up in cards taxing artifacts and other board states: don't deny the resource, make holding it expensive enough that the math breaks. It rewards a deck light on its own enchantments and built to flood the board with mana the opponent cannot match.
