Archelos, Lagoon Mystic + Caged Sun + Patron of the Moon + Uyo, Silent Prophet

BGU identity

Commander legal

The 4 combo pieces

• Archelos, Lagoon Mystic
• Caged Sun
• Patron of the Moon
• Uyo, Silent Prophet

What must be in place

High Tide in hand.You control at least two Islands.
"Blue" chosen with Caged Sun.
Archelos is untapped.

How to execute it

1. Cast any instant or sorcery spell by paying its mana cost, or wait for an opponent to cast one.
2. Holding priority, activate two Islands by tapping them, adding {U}{U}.
3. Caged Sun triggers twice, adding {U}{U}.
4. Holding priority, activate Uyo by paying {2} and returning two Islands to your hand, copying the instant or sorcery.
5. Resolve the copy of the instant or sorcery.
6. Activate Patron of the Moon by paying {1}, putting two Islands from your hand onto the battlefield untapped due to Archelos.
7. Repeat from step 2.
8. Once you have infinite {U}, you may instead use any other lands you control to get infinite mana those lands produce.

What the combo produces

• Infinite copies of instant and sorcery spells on the stack
• Infinite landfall triggers
• Infinite magecraft triggers
• Infinite mana lands you control can produce