Myr Propagator, Mana Echoes, and Garna, the Bloodflame

Prerequisites

• Myr Propagator on the battlefield
• Mana Echoes on the battlefield
• Garna, the Bloodflame on the battlefield
• at most available

Steps

1. Activate Myr Propagator by paying and tapping it, creating a token copy of it
2. When the Myr Propagator token enters the battlefield, Mana Echoes triggers, adding for each Myr you control
3. Repeat using the Myr Propagator token instead

Results

• Infinite colorless mana
• Infinite ETB
• Infinite tapped creature tokens