Cast Brilliance Unleashed by paying {4}{U}{R}. Choose its second mode, targeting any artifact card in your graveyard.
Holding priority, activate Lithoform Engine's second ability by paying {3} and tapping it, targeting Brilliance Unleashed.
Holding priority, activate Krark-Clan Ironworks by sacrificing Lithoform Engine, adding {C}{C}.
Resolve the Lithoform Engine ability, copying Brilliance Unleashed twice due to Twinning Staff, targeting Lithoform Engine and another artifact card in your graveyard.
Resolve both copies of Brilliance Unleashed, returning Lithoform Engine and the other artifact from your graveyard to the battlefield.
Holding priority, activate Krark-Clan Ironworks by sacrificing the other artifact, adding {C}{C}.
Repeat from step 2.

Infinite death triggers

Infinite magecraft triggers

Infinite recursion of artifacts you control

Infinite sacrifice triggers

Infinite ETB

Infinite LTB

Infinite colorless mana

Brilliance Unleashed

Lithoform Engine

Krark-Clan Ironworks

Twinning Staff

Akroma's Memorial

Cast Brilliance Unleashed by paying {4}{U}{R}. Choose its second mode, targeting any artifact card in your graveyard.
Holding priority, activate Lithoform Engine's second ability by paying {2} due to Forensic Gadgeteer and tapping it, targeting Brilliance Unleashed.
Holding priority, activate Krark-Clan Ironworks by sacrificing Lithoform Engine, adding {C}{C}.
Resolve the Lithoform Engine ability, copying Brilliance Unleashed, targeting Lithoform Engine.
Resolve the copy of Brilliance Unleashed, returning Lithoform Engine from your graveyard to the battlefield as a 3/3 Robot artifact creature.
Repeat from step 2.

Krang, Utrom Warlord

Forensic Gadgeteer

Combos with "Brilliance Unleashed"