Arcbound Reclaimer + Bolas's Citadel + Showdown of the Skalds + Urza's Bauble

RWB identity

Commander legal

The 4 combo pieces

• Arcbound Reclaimer
• Bolas's Citadel
• Showdown of the Skalds
• Urza's Bauble

How to execute it

1. Cast Urza's Bauble either from your hand by paying {0} or from the top of your library by paying 0 life.
2. Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
3. Activate Urza's Bauble by tapping and sacrificing it.
4. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Urza's Bauble from your graveyard onto the top of your library.
5. Repeat.

What the combo produces

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