Myr Welder + Empowered Autogenerator + Singing Bell Strike

Myr Welder

Empowered Autogenerator

Singing Bell Strike

How it works

1. Activate Myr Welder using Empowered Autogenerator's ability by tapping it, putting a charge counter on it and adding one mana of any color for each charge counter on it.
2. Activate Myr Welder by paying 6, untapping it.
3. Repeat.

This ingenious loop turns Myr Welder into a self-contained mana engine by feeding on the graveyard and artifacts. First, you imprint Empowered Autogenerator under Myr Welder so the construct can tap itself to accumulate charge counters and generate a massive surge of colored mana. To make the loop continuous, Singing Bell Strike must also be exiled by Myr Welder, granting the welder its own specialized untap ability for six mana. By tapping to generate mana and then paying six of that mana to untap, Myr Welder can repeat the process infinitely to yield boundless colored mana.