Emry, Lurker of the Loch, Displacer Kitten, Corridor Monitor, and Lion's Eye Diamond

Prerequisites

• Emry, Lurker of the Loch on the battlefield
• Displacer Kitten on the battlefield
• Corridor Monitor on the battlefield
• Lion's Eye Diamond in the graveyard

Steps

1. Activate Emry by tapping it, targeting Lion's Eye Diamond
2. Cast Lion's Eye Diamond from your graveyard by paying
3. Displacer Kitten triggers, blinking Corridor Monitor
4. When Corridor Monitor enters, it triggers, untapping Emry
5. Activate Lion's Eye Diamond by discarding your hand and sacrificing it
6. Repeat

Results

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