Urza, Prince of Kroog, Dockside Extortionist, and Liquimetal Coating

Prerequisites

• Urza, Prince of Kroog on the battlefield
• Dockside Extortionist on the battlefield
• Liquimetal Coating on the battlefield
• Opponents control at least seven artifacts and/or enchantments
• available

Steps

1. Activate Liquimetal Coating by tapping it, causing Dockside Extortionist to become an artifact until end of turn
2. Activate Urza by paying , creating a token copy of Dockside Extortionist that is a 1/1 Soldier in addition to its other types
3. The Dockside Extortionist token enters the battlefield, creating at least seven Treasure tokens
4. Activate six Treasure tokens by tapping and sacrificing them, adding
5. Repeat from step 2
6. Once you have infinite mana and Treasure tokens, you may use Urza to make infinite copies of any artifacts you control

Results

• Infinite colored mana
• Infinite copies of artifacts you control
• Infinite creature tokens
• Infinite ETB
• Infinite Treasure tokens