Quicksilver Elemental, Argothian Elder, and Horseshoe Crab

Prerequisites

• Quicksilver Elemental on the battlefield
• Argothian Elder on the battlefield
• Horseshoe Crab on the battlefield
• undefined

Steps

1. Pay using Quicksilver Elemental to target Horseshoe crab
2. Pay using Quicksilver Elemental to target Argothian Elder
3. Tap Quicksilver Elemental to untap lands for at least
4. Pay to untap Quicksilver Elemental
5. Repeat

Results

• Infinite colored mana
• Infinite untap