Arcbound Reclaimer, Showdown of the Skalds, Dark Sphere, and Future Sight

Prerequisites

• Arcbound Reclaimer on the battlefield
• Showdown of the Skalds on the battlefield or in the graveyard
• Dark Sphere in hand or in the library
• Future Sight on the battlefield

Steps

1. Cast Dark Sphere 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 Dark Sphere by tapping and sacrificing it
3. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Dark Sphere from your graveyard onto the top of your library
4. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite +1/+1 counters on Golems you control