Ward—Pay 3 life. (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays 3 life.)
Whenever you cast an instant or sorcery spell, you may sacrifice an artifact. If you do, copy that spell and you may choose new targets for the copy.
Mica turns artifacts—especially Treasure and other token artifacts—into spell copies, doubling burn, removal, and value spells every turn. You generate a wide artifact base, then chain instants and sorceries while sacrificing fodder to copy them, eventually copying a big payoff like a fireball-style X-spell or a Comet Storm to kill the table.
Mono-red spell copying lets you double burn and removal at instant speed for free if you have artifacts to feed
Treasure and clue/token generators give endless sacrifice fodder while also ramping you
Ward—Pay 3 life makes Mica resilient to single-target removal
Strong synergy with X-spells and storm-style burn finishers
Heavily dependent on having artifacts in play—artifact wipes (Vandalblast, Bane of Progress) cripple the engine
Mono-red lacks card draw and recursion compared to other colors
Copying only triggers on your own instants/sorceries, so a flooded board of creatures does little
Board wipes and lifegain decks can outlast the burn plan
Tutors and recurs artifacts to keep sacrifice fodder flowing.
Lean into fast Treasure makers (Dockside Extortionist, Jeska's Will, Professional Face-Breaker) and cost reducers like Birgi to enable explosive copy turns. Add a damage doubler (Fiery Emancipation, Torbran) and an efficient X-finisher so a single copied spell ends the game. Tighten the curve with cheap rituals and protect Mica with haste or recursion (Feldon, Daretti) to keep the engine online through removal.