Emry, Lurker of the Loch, Mirran Spy, and Krark-Clan Ironworks

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Mirran Spy on the battlefield
• Krark-Clan Ironworks on the battlefield
• You control a nontoken artifact with mana value one or less that can be cast using only colorless mana
• Emry does not have summoning sickness

Steps

1. Activate Krark-Clan Ironworks by sacrificing the nontoken artifact with mana value one or less, adding
2. Activate Emry by tapping it, allowing you to cast the nontoken artifact from your graveyard this turn
3. Cast the artifact from your graveyard by paying its mana cost
4. Mirran Spy triggers, untapping Emry
5. Repeat

Results

• Infinite colorless mana
• Infinite storm count