Protomatter Powder

The seam is the giveaway: the body costs blue, the activation costs white. That split is the whole design wager. It deploys as a blue artifact, fitting a deck that wants to hold up answers and grind, then demands plus the tap and the sacrifice before it pays off, returning a single artifact card from the graveyard to the battlefield. The piece is built for the wedge between two colors rather than a clean mono-color outlet: you pay in one to deploy, another to cash out. The reanimation carries no timing restriction, so the real flexibility lives in the instant-speed window. You can let the artifact sit as a threat-of-activation, then convert it for a key artifact in response to a removal spell or at the end of an opponent's turn. The price (five mana plus the body and the bin) only looks worthwhile when the target is something the deck cannot afford to recast outright, because the conversion is one-shot and steep. As a two-color artifact-recursion piece, it never asked to be efficient; it asked to live in an Azorius shell where artifacts are the connective tissue, and where getting one back at the moment of your choosing matters more than getting it back cheaply. Pay your timing freedom for in two colors and a heavy back end: a flexible window in exchange for that commitment.