Mm'menon, the Right Hand

Casting from atop your library has usually been a soft advantage: you peek ahead, and if the next card happens to be castable, you pocket a small tempo gift. This design turns that trickle into a machine. The two peek-and-cast clauses are familiar fixtures, but the final line is where the whole thing pivots: every artifact you control gains a tap ability that produces blue mana, and that mana can only pay for spells cast from anywhere other than your hand. Read together, the clauses form a self-fueling casting chain: you tap the artifacts already in play to fund the artifact surfacing off the top, it resolves, the next card surfaces, and the wheel turns. The restriction on that mana is the hinge. It contributes nothing to a normal curve out of hand, so it pushes the surrounding deck toward casting from elsewhere entirely. And "anywhere other than your hand" reaches wider than the top of the library: the graveyard, exile, and the command zone all qualify, and that reach is what separates this from a plain topdeck-value engine. The 3/4 flying body is incidental support, a clock that survives most early removal while the engine assembles behind it. What justifies the build is the breadth of zones that mana can reach, not the stats, and the loop is only ever as strong as the density of non-hand cast targets the deck is willing to run.