Aether Syphon

A repeatable draw engine gated behind an aggression clock, which is a stranger pairing than it looks. The activated ability is pure card advantage on a stick: two mana and a tap for a card, no restriction, no cost per activation beyond the mana. But the mill payoff only comes online once your speed hits maximum, and speed only climbs when an opponent is bleeding life. That is the tension the design is built around. A pillowy draw-go shell can run the artifact all day and never turn on the mill, because nothing is dealing damage; a deck that actually pressures the opponent's life total gets to convert every draw into a two-card bite out of each enemy library. The engine rewards a deck that wants to grind and race at the same time, an uncommon combination in blue, where card advantage usually means playing the long game and mill usually means abandoning the beatdown. Because max speed is a threshold rather than a resource you spend, once you reach it the mill trigger fires on every draw for the rest of the game, including draws from other sources, not just the artifact's own activation. That is the payoff that justifies the setup: the clock is slow to start and hard to switch off once running.