Infinite Reflection
Most copy effects run one direction: you take a thing and stamp out a duplicate of it. This Aura runs the photocopier in reverse. Enchant your best creature and the rest of your nontoken board collapses into it, and the effect keeps reaching forward in time: anything nontoken you cast afterward arrives already wearing the enchanted creature's face. The static replacement clause is where the real value lives. The enter-attached trigger is a one-time wave that washes over your current board; the standing instruction is what turns every future drop into another copy. The seam between those two timing windows defines the card. What it asks for is steep: it commits six mana plus an Aura to a single host, so it lives and dies with whatever it lands on. Kill the host and the existing copies stay, but your future copying disappears with it. In exchange, it wants a body worth printing in bulk, ideally one whose triggers stack rather than overlap: enter-the-battlefield effects, "whenever this attacks" lines, anything that scales with multiplicity instead of a single instance. This is a payoff card in the strictest sense, demanding you supply both the engine to copy and the creatures to flood into the mold; left to its own devices on an empty board, it does the work for nobody.
