Argothian Elder + Horseshoe Crab + Quicksilver Elemental

GU identity

Commander legal

The 3 combo pieces

• Argothian Elder
• Horseshoe Crab
• Quicksilver Elemental

What must be in place

Two lands that tap for blue.

How to execute it

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

What the combo produces

• Infinite colored mana
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control