Spellbinder

Bank an instant when this Equipment enters, then turn every connecting attacker into a free recast of it: an engine that converts a one-time spell into a recurring effect for as long as the creature keeps getting through. The math is where the friction lives. Three to play, four to equip, an instant exiled up front on the enters-the-battlefield trigger, and then combat damage to a player before the copy ever fires. That is a lot of freight for a spell you could simply have cast. The payoff only clears it when the imprinted card is worth recasting again and again at no cost: a hard-hitting burn spell to close, a tempo bounce that resets a blocker each turn, a draw instant that refills while the creature keeps swinging. The combat-damage trigger is the real cost, not the mana. The equipped creature has to be evasive or hard to block, because a chump-blocked attacker copies nothing, and an instant chained to connecting is a worse instant than one cast on your own terms. What it offers in return is a kind of engine few Equipment of its era attempted: not a stat boost, not protection, but repetition of a single effect, the imprint mechanic asking you to stash a spell now and collect on it later, over and over, until the attacker stops getting through.