Mirror Mockery

The trigger fires on attack, but its timing is the whole design. Because the token is created after attackers are declared, it does not enter attacking; it arrives untapped, after the swing that spawned it, then exiles itself at end of combat. That single-turn window is why this Aura's value lives entirely in what the copy does when it lands and how you cash it in before it leaves. Park it on a creature whose arrival matters and each attack replays that arrival; park it on an aristocrat payoff and the temporary copy becomes fodder you feed to a sacrifice outlet before end of combat claws it back, converting the exile clock into a death trigger on your terms. Attached to an opponent's creature, it turns stranger still: when they attack, you create the copy before blockers are declared, so a duplicate of their own attacker steps in front of it as a blocker you control, then vanishes when combat ends. The exile clause disciplines all of it: the copy cannot accumulate or snowball, so the payoff has to land inside one combat step or not at all. Two mana for an Aura is a precarious investment, since removal aimed at the host makes it a two-for-one, and the copy only justifies the risk when the creature underneath is worth copying. Read as a buff, it is nothing. Read for the trigger, it is a repeatable copy engine that prices its own restraint into the timing.