Emry, Lurker of the Loch, Mirran Spy, and Black Lotus

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Mirran Spy on the battlefield
• Black Lotus on the battlefield
• Emry does not have summoning sickness

Steps

1. Activate Black Lotus by tapping and sacrificing it, adding three mana of any color
2. Activate Emry by tapping it, targeting Black Lotus
3. Cast Black Lotus from your graveyard by paying
4. Mirran Spy triggers, untapping Emry
5. Repeat

Results

• Infinite colored mana
• Infinite storm count