Sakashima of a Thousand Faces + Cogwork Assembler + Chromatic Orrery + Primal Vigor
Sakashima of a Thousand Faces
Cogwork Assembler
Chromatic Orrery
Primal Vigor
Infinite card drawInfinite colored manaInfinite colorless manaInfinite copies of artifacts you controlInfinite creature tokens with hasteInfinite draw triggersInfinite creature ETB
How it works
Activate Chromatic Orrery's first ability by tapping it, adding 5.
Activate Cogwork Assembler by paying 7, creating two token copies of Chromatic Orrery.
Activate the Chromatic Orrery tokens' first abilities by tapping them, adding 10.
Repeat from step 2.
Once you have infinite mana, you may instead tap the Chromatic Orrery tokens to draw infinite cards, or target any artifact(s) using Cogwork Assembler's ability.
This loop relies on Chromatic Orrery to generate massive chunks of mana while simultaneously bypassing any color restrictions thanks to its passive fixing ability. With Sakashima of a Thousand Faces in play, the legend rule is nullified, allowing you to easily maintain multiple copies of your key artifacts without self-sacrificing. Cogwork Assembler then converts that abundant mana into token copies of Chromatic Orrery, a process dramatically supercharged by Primal Vigor doubling every token created. Once this engine gets rolling, you end up with an exponential surplus of mana that can be easily funneled back into the Assembler or used to draw your entire deck.