Toph, Greatest Earthbender, Power Depot, Crystalline Crawler, Goblin Bombardment, and Hardened Scales

Prerequisites

• Toph, Greatest Earthbender in hand or in the command zone
• Power Depot in hand
• Crystalline Crawler on the battlefield
• Goblin Bombardment on the battlefield
• Hardened Scales on the battlefield
• plus commander tax if applicable available

Steps

1. Play Power Depot, which will enter with a +1/+1 counter on it due to its modular ability, increased by Hardened Scales
2. Cast Toph either from your hand or from the command zone by paying plus commander tax if applicable
3. When Toph enters, it triggers, earthbending Power Depot and putting a number of +1/+1 counters on Power Depot equal to the mana spent to cast Toph, increased by Hardened Scales
4. Activate Goblin Bombardment by sacrificing Power Depot
5. When Power Depot dies, its modular ability and Toph trigger
6. Resolve the modular trigger, putting the +1/+1 counters that were on Power Depot onto Crystalline Crawler, increased by Hardened Scales
7. Resolve the Toph trigger, returning Power Depot from your graveyard to the battlefield tapped
8. Power Depot will enter with two +1/+1 counters on it due to its modular ability and Hardened Scales
9. Resolve the Goblin Bombardment ability from step 4
10. Activate Goblin Bombardment by sacrificing Toph
11. Choose to return Toph from your graveyard to the command zone
12. Activate Crystalline Crawler by removing a +1/+1 counter from it, adding
13. Repeat step 10 until you have enough mana to cast Toph
14. Repeat from step 2

Results

• Infinite +1/+1 counters on creatures you control
• Infinite ETB
• Infinite LTB
• Infinite colored mana
• Infinite damage
• Infinite death triggers
• Infinite landfall triggers
• Infinite sacrifice triggers