Uyo, Silent Prophet + Patron of the Moon + Amulet of Vigor + Caged Sun

Uyo, Silent Prophet

Patron of the Moon

Amulet of Vigor

Caged Sun

How it works

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 .
3. Caged Sun triggers twice, adding .
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 tapped.
7. When the Islands enter the battlefield, Amulet of Vigor triggers twice, untapping them.
8. Repeat from step 2.
9. Once you have infinite , you may instead use any other lands you control to get infinite mana those lands produce.