Relic Bind
A taxation aura aimed at the wrong side of the table: instead of restricting what an opponent's artifact does, it punishes them for using it at all. This belongs to the old school of early blue, where the card sat on the battlefield as an ambient tax meter and asked the opponent to do the math on every activation. The modal choice between pinging a player or planeswalker and gaining a life tells you this was built for a slower, mana-rock-heavy era: against a Sol Ring or a Mana Vault, one damage per tap is a real clock, and the life-gain mode is there to push you back ahead in the longer grind those rocks were fueling. The economics have not held up (a one-shot piece of artifact removal does more for less), and the targeting restriction (it must enchant an artifact an opponent controls) means it sits dead in any matchup where the opponent has not committed to artifacts yet. What it preserves is a design idea modern Magic has mostly abandoned: the aura as a passive heckler, generating value off another player's choices rather than your own, and specifically off the tap event rather than the artifact's presence. Pithing Needle and Stony Silence eventually solved the adjacent problem more cleanly by just turning the artifact off, which is a better answer but a duller card.
