Arcbound Reclaimer, Showdown of the Skalds, Urza's Bauble, and Magus of the Future

Prerequisites

• Arcbound Reclaimer on the battlefield
• Showdown of the Skalds on the battlefield or in the graveyard
• Urza's Bauble in hand or in the library
• Magus of the Future on the battlefield

Steps

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

Results

• Infinite card draw at the beginning of the next upkeep step
• Infinite draw triggers at the beginning of the next upkeep step
• Infinite +1/+1 counters on a creature
• Infinite +1/+1 counters on Golems you control