Kurkesh, Onakke Ancient, Lithoform Engine, Voltaic Key, and Dockside Extortionist

Prerequisites

• Kurkesh, Onakke Ancient on the battlefield
• Lithoform Engine on the battlefield
• Voltaic Key on the battlefield
• Dockside Extortionist in hand
• For infinite mana, is required, and your opponents must have at least 3 artifacts and/or enchantments
• For infinite creature tokens and mana, is required, and your opponents must have at least 4 artifacts and/or enchantments

Steps

1. Cast Dockside Extortionist for
2. If you want infinite creature tokens, skip to step 8; otherwise, continue to step 3
3. Dockside Extortionist ETBs, putting its ETB trigger onto the stack
4. Tap Lithoform Engine, copying the ETB and triggering Kurkesh
5. Pay for the Kurkesh, copying the ETB an additional time
6. Resolve both copied ETBs, generating at least 6 treasures
7. Continue from step 11
8. While Dockside Extortionist is still on the stack, tap Lithoform Engine for to copy Dockside Extortionist, triggering Kurkesh
9. Pay for the Kurkesh trigger, copying Dockside Extortionist an additional time
10. Resolve both Dockside Extortionist copies, creating at least 8 treasure tokens
11. Tap Voltaic Key for 1 treasure token, untapping Lithoform Engine and triggering Kurkesh
12. Spend 1 treasure token to pay for the trigger, copying the untap ability targeting Voltaic Key
13. Repeat for infinite treasure tokens, and creature tokens if applicable

Results

• Infinite colored mana
• Infinite creature tokens if applicable
• Infinite ETB if applicable
• Infinite sacrifice triggers