Arcbound Reclaimer, Showdown of the Skalds, Lion's Eye Diamond, and The Lunar Whale

Prerequisites

• Arcbound Reclaimer on the battlefield
• Showdown of the Skalds on the battlefield or in the graveyard
• Lion's Eye Diamond in hand or in the library
• The Lunar Whale on the battlefield

Steps

1. Cast Lion's Eye Diamond either from your hand or from the top of your library by paying Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer
2. Activate Lion's Eye Diamond by discarding your hand and sacrificing it
3. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Lion's Eye Diamond from your graveyard onto the top of your library
4. Repeat

Results

• Infinite storm count
• Infinite colored mana