Essence Anchor

The engine here runs backwards from most graveyard payoffs. Where a delve card or Snapcaster Mage wants your graveyard to grow, this one fires only when a card leaves it: the upkeep surveil quietly stocks the bin, and the Zombie token clause demands you empty it again the same turn you want a body. The artifact handles only the deposit; the withdrawal has to come from elsewhere. Surveil does the stocking, but the tap ability checks for a card having left your graveyard that turn, which means an external outlet (flashback, escape, disturb, a return-to-hand effect, a graveyard sacrifice) has to remove the card before the anchor pays out. Note the direction: milling and reanimation-that-fills do not count, because those move cards into the yard; only exit traffic satisfies the clause. The token is the interest on keeping that flow moving rather than letting the pile sit. The timing restriction is careful not to hand you a repeatable creature for free: an idle turn produces nothing, and a turn where you never spend from the graveyard produces nothing either. So the anchor only earns its keep beside a deck already built to consume its own yard, and sits inert next to one that merely fills it. The token itself is pointedly off-color for a blue artifact, a 2/2 black Zombie Druid, which reads as an invitation to pair the anchor with black's graveyard machinery rather than run it as a standalone value piece. A component, not a finisher: it converts graveyard traffic into board presence, priced so the traffic has to be real.