Myr Welder + Voltaic Construct + Thran Dynamo

Myr Welder

Voltaic Construct

Thran Dynamo

How it works

1. Activate Myr Welder using Thran Dynamo's ability by tapping it, adding CCC.
2. If Voltaic Construct is on the battlefield, activate Voltaic Construct by paying 2, untapping Myr Welder. Otherwise, activate Myr Welder using Voltaic Construct's ability by paying 2, untapping Myr Welder.
3. Repeat.

This mechanical loop transforms Myr Welder into a self-contained power plant by feeding on the graveyard and artifacts around it. By imprinting Thran Dynamo and Voltaic Construct onto Myr Welder, the creature gains the massive mana-producing potential of the Dynamo alongside the artifact-untapping capability of the Construct. You simply tap the welded-on Thran Dynamo ability to generate three colorless mana, then spend two of that mana to activate the welded-on Voltaic Construct ability to untap the Myr Welder, netting one colorless mana each cycle for an infinite supply.