Mana Echoes, Propagator Drone, and Gemstone Array

Prerequisites

• Mana Echoes on the battlefield
• Propagator Drone on the battlefield
• Gemstone Array on the battlefield
• at most available

Steps

1. Activate Propagator Drone by paying , creating a 0/1 Eldrazi Spawn creature token
2. When the Eldrazi Spawn enters, Mana Echoes triggers, adding for each Eldrazi and Spawn you control
3. If needed, activate Gemstone Array's first ability by paying , putting a charge counter on it
4. Then, activate Gemstone Array's second ability by removing a charge counter from it, adding
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite charge counters on a permanent
• Infinite colored mana
• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite sacrifice triggers