Brilliance Unleashed, Lithoform Engine, Krark-Clan Ironworks, Thopter Engineer, and Zirda, the Dawnwaker

Prerequisites

• Brilliance Unleashed in hand
• Lithoform Engine on the battlefield
• Krark-Clan Ironworks on the battlefield
• Thopter Engineer on the battlefield
• Zirda, the Dawnwaker on the battlefield
• available

Steps

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

Results

• Infinite ETB
• Infinite LTB
• Infinite colorless mana
• Infinite death triggers
• Infinite magecraft triggers
• Infinite sacrifice triggers