Spellweaver Helix
Imprint was an early-era experiment in artifacts that remember a card and carry a piece of it forward, and most of that work settled for copying stats or a cost. This one reached for something stranger: a name-matching trigger that turns two exiled sorceries into a recurring free-cast engine. The setup is deliberately awkward. You need two sorceries already sitting in a single graveyard, and the payoff only arrives when somebody later casts a card whose name matches one of the exiled pair, at which point the helix hands you a free copy of the other. That double dependency (a graveyard to seed it, then a future cast to fire it) kept it locked to dedicated combo experiments. The crucial wrinkle is the word "card": the trigger checks only when a player casts a card, and the copy the helix makes is not a card, so the engine cannot feed itself. Casting sorcery A copies B, but resolving that B-copy triggers nothing further. To keep it turning you need an outside source that recasts the named sorceries from hand or another zone, something that puts actual cards on the stack again and again. The reward for assembling that scaffolding is open-ended, since you choose both names. The cost is that the engine sits inert until the second half clicks, after you have already spent two cards and a setup turn. It is imprint's original promise in its most literal form: an artifact that waits for you to say a name.
