Paradox Engine, Urza's Bauble, Emry, Lurker of the Loch, and Sol Ring

Prerequisites

• Paradox Engine on the battlefield
• Urza's Bauble on the battlefield
• Emry, Lurker of the Loch on the battlefield
• Sol Ring on the battlefield

Steps

1. Sacrifice Urza's Bauble targeting any player
2. Use Emry's ability targeting Urza's Bauble in graveyard
3. Cast Urza's Bauble
4. On ETB Paradox Engine triggers, untapping Emry and Sol Ring
5. Tap Sol Ring for

Results

• Infinite artifact sacrifice
• Infinite colorless mana
• Infinite ETB
• Infinite storm count