Edgar, Master Machinist
Two clauses in one Boros artificer, and the interplay between them is the whole design. The graveyard clause reads like pure engine fuel: one artifact spell recast from the yard each turn, so a shell of cheap, replaceable artifacts refuels itself indefinitely. That recast enters tapped, and that detail is doing real work: the artifact contributes to the board immediately but sits out a turn cycle, so the recursion is a value drip rather than a machine gun. The attack trigger, meanwhile, doesn't care about tapped status at all. It scans the greatest mana value among artifacts you control and hands that number to the attacker as raw power, with no target and no attack requirement on the artifact itself. A single high-mana-value permanent sitting on the battlefield, tapped or not, turns the modest 2/4 frame into a genuine threat the moment it swings. That is the split the build has to serve: a low curve of disposable artifacts to keep the graveyard loop churning, and at least one fat mana-value payoff to make the Tools bonus lethal. The card wants two curves at once, treating the graveyard as a resource pool and the top of the artifact curve as a finisher rather than a durdle. Entering tapped is what stops the recursion from doubling as free tempo: you get the artifact back or you keep pace on the board, seldom both from the same card in the same turn.
