Emry, Lurker of the Loch, Mirran Spy, Lotus Petal, and Sai, Master Thopterist

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Mirran Spy on the battlefield
• Lotus Petal on the battlefield
• Sai, Master Thopterist on the battlefield
• Emry does not have summoning sickness

Steps

1. Activate Lotus Petal by tapping and sacrificing it, adding one mana of any color
2. Activate Emry by tapping it, targeting Lotus Petal
3. Cast Lotus Petal from your graveyard by paying
4. Mirran Spy and Sai, Master Thopterist triggers
5. Resolve the Mirran Spy trigger, untapping Emry
6. Resolve the Sai, Master Thopterist trigger, creating a 1/1 Thopter token
7. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite ETB
• Infinite LTB
• Infinite storm count