Myr Propagator + Mana Echoes + Temur Ascendancy

Myr Propagator

Mana Echoes

Temur Ascendancy

How it works

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

This delightful loop turns a modest mechanical Myr into a self-replicating engine, fueled entirely by the overlapping tribal presence of your own battlefield. When you activate Myr Propagator to spawn a token copy, Mana Echoes instantly recognizes the newborn creature and floods your pool with colorless mana based on how many Myrs you control. Because Temur Ascendancy grants your entire team haste, the freshly minted token doesn't have to wait around—it can immediately tap to copy itself yet again, scaling the mana output exponentially with each iteration.