Daretti's power is equal to the greatest mana value among artifacts you control.
Whenever Daretti enters or attacks, choose target artifact card in your graveyard. You may sacrifice an artifact. If you do, return the chosen card to the battlefield.
Daretti is a mono-red artifact reanimator: flood the board with cheap artifacts, sacrifice them for value (treasures, fodder), and use Daretti's ETB/attack trigger to keep returning your biggest artifacts from the graveyard. You ramp into and recur expensive bombs while his power scales off your largest artifact's mana value, letting him hit hard or fuel reanimation loops every combat.
Repeatable artifact reanimation from the command zone every time he attacks
Mono-red consistency and access to powerful artifact tutors, ramp, and rituals
Turns sacrifice 'downsides' into engines—Treasure tokens, fodder, and dies-triggers all feed him
Scales as a beater since his power equals your biggest artifact's mana value
Needs an artifact to sacrifice each trigger, so empty boards stall the engine
Mono-red lacks card draw and struggles with non-creature, non-artifact threats
Vulnerable to graveyard hate that shuts off the reanimation plan
Daretti himself is fragile and removal-prone for a 5-mana commander you lean on heavily
Legendary Creature — Goblin Artificer
