Kurkesh, Onakke Ancient, Strionic Resonator, Voltaic Key, and Dockside Extortionist

Prerequisites

• Kurkesh, Onakke Ancient on the battlefield
• Strionic Resonator on the battlefield
• Voltaic Key on the battlefield
• Dockside Extortionist in hand
• Opponents control in any combination at least 3 artifacts or enchantments
• At least 1 available

Steps

1. Cast Dockside Extortionist
2. With the enter the battefield trigger on the stack copy it with Strionic Resonator
3. Copy the activation of Strionic Resonator with Kurkesh, Onakke Ancient
4. Resolve the both copied triggers to create at least 6 treasures
5. Sacrifice two of the treasures to activate Voltaic Key and copy activation with Kurkesh, Onakke Ancient to untap Strionic Resonator and Voltaic Key
6. Repeat from step 2

Results

• Infinite colored mana
• Infinite Treasure tokens
• Infinite untaps of artifacts you control