Herald of Anguish

Improvise was the artifact deck's answer to the question of why a creature with a real body should ever cost full price, and this Demon is the keyword's payoff where the numbers run largest. The printed cost reads as seven mana, but in a deck stuffed with cheap artifacts it lands several turns early, a 5/5 flier that starts grinding hands away every time your turn ends. That recurring discard is the strategic spine: it converts a board-stall into inevitability, taxing control mirrors and slow midrange for every end step the Demon lives to see. The sacrifice ability is the other half of the bargain, turning the artifacts you no longer need (or the ones you tapped to cast it) into repeatable -2/-2 removal that clears blockers and defends the flier from the ground. That is the design's internal logic: the same artifacts that cheat it onto the battlefield become ammunition once it is there, so a board built to ramp it out doubles as a board built to protect it. It rewards a specific kind of construction, the artifact-aggro shell that wants a closer with reach beyond combat, and it reads as an overcosted body anywhere that cannot keep the artifact count high. Inside that shell, it is the piece that turns a pile of trinkets into a clock and a control element at once.