Myr Welder + Sword of the Paruns + Empowered Autogenerator

Myr Welder

Sword of the Paruns

Empowered Autogenerator

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 Sword of the Paruns by paying 3, untapping Myr Welder.
3. Repeat.

This clever loop turns Myr Welder into a self-sustaining mana engine once Empowered Autogenerator is safely tucked away in the graveyard to be imprinted. By absorbing the Autogenerator's activated ability, the Welder gains the power to tap for escalating amounts of colored mana while building up charge counters. Meanwhile, Sword of the Paruns provides the crucial untapping mechanism; by paying its activation cost, you ready the Welder to tap again, netting more mana each cycle than the last to easily cover the untap fee.