Energy Refractor + Mana Echoes + Propagator Drone

Mana needed: {5}{2/G}{2/G}{2/G} at most

RG identity

Commander legal

The 3 combo pieces

• Energy Refractor
• Mana Echoes
• Propagator Drone

How to execute it

1. Activate Propagator Drone by paying {3}{G}, creating a 0/1 Eldrazi Spawn creature token.
2. When the Eldrazi Spawn enters, Mana Echoes triggers, adding {C} for each Eldrazi and Spawn you control.
3. If needed, activate Energy Refractor by paying {2}, adding {G}.
4. Repeat.

What the combo produces

• Infinite colored mana
• Infinite colorless mana
• Infinite creature LTB
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers