Zabaz, the Glimmerwasp, Cauldron of Souls, Dross Scorpion, and Krark-Clan Ironworks

Prerequisites

• Zabaz, the Glimmerwasp on the battlefield
• Cauldron of Souls on the battlefield
• Dross Scorpion on the battlefield
• Krark-Clan Ironworks on the battlefield

Steps

1. Activate Cauldron of Souls by tapping it, giving Zabaz persist until end of turn
2. Activate Krark-Clan Ironworks by sacrificing Zabaz, adding
3. Zabaz dies, triggering its persist ability and Dross Scorpion
4. Resolve the Zabaz trigger, returning it to the battlefield with zero +1/+1 counters due to its modular ability
5. Resolve the Dross Scorpion trigger, untapping Cauldron of Souls
6. Repeat

Results

• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers