Abby, Merciless Soldier, Ashnod's Altar, Pitiless Plunderer, and Goblin Bombardment

Prerequisites

• Abby, Merciless Soldier in the command zone
• Ashnod's Altar on the battlefield
• Pitiless Plunderer on the battlefield
• Goblin Bombardment on the battlefield
• plus enough mana to pay for Abby's commander tax available

Steps

1. Cast Abby from the command zone by paying plus commander tax
2. Abby triggers, creating a number of 1/1 Cordyceps Infected creature tokens
3. Resolve Abby, giving control of it to an opponent
4. Activate Goblin Bombardment four times by sacrificing four Cordyceps Infected tokens, dealing 4 damage to Abby
5. Abby dies as a state-based action due to having 0 toughness
6. Choose to return it to the command zone from your graveyard
7. When the Cordyceps Infected tokens die, Pitiless Plunderer triggers four times, creating four Treasure tokens
8. Activate the Treasures by tapping and sacrificing them, adding
9. Activate Ashnod's Altar by sacrificing a Cordyceps Infected token, adding
10. When the Cordyceps Infected token dies, Pitiless Plunderer triggers, creating a Treasure token
11. Activate a Treasure by tapping and sacrificing it, adding
12. Repeat from step 8 until you control no Cordyceps Infected tokens and/or have enough mana to cast Abby
13. Repeat from step 1

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana
• Infinite damage
• Infinite storm count
• Infinite creature tokens
• Infinite Treasure tokens
• Infinite commander casts