Idris, Soul of the TARDIS
Vanishing is the counterweight that keeps this artifact-copier from being a permanent engine, and its pairing with Imprint is the whole trick. Most stat-boosting body-graft designs let you keep whatever you glue on; here the graft is loud but rented. Imprint exiles one of your artifacts and hands over every activated and triggered ability it had, plus a power and toughness boost scaled to the exiled card's cost. Send a five-mana artifact underneath and you get an 8/8 that does whatever that artifact did. Then the time counters do their work: they tick off each upkeep, and when the last one goes, so does the body, taking your inflated stats with it and returning the imprinted artifact to the battlefield. That framing inverts the usual value proposition of a copier. You are not building a lasting engine; you are cashing your best artifact's ability into a short window and getting the artifact back on the far side. The card sitting in exile is not a loss but collateral: it comes home when the clock runs out. The real deckbuilding puzzle is the exit. Blink or bounce this before the time counters expire and you reset the imprint choice and refresh the vanishing clock, turning a self-terminating three-turn borrow into something you can renew, re-aim at a different artifact each time, and never quite let die.
