Voltaic Construct + Sanctum Weaver + Mycosynth Lattice

Voltaic Construct

Sanctum Weaver

Mycosynth Lattice

How it works

1. Activate Sanctum Weaver by tapping it, adding at least 3.
2. Activate Voltaic Construct by paying 2, untapping Sanctum Weaver.
3. Repeat

By weaving Mycosynth Lattice into the fabric of the battlefield, every permanent you control becomes an artifact—instantly transforming Sanctum Weaver into an artifact creature fueled by the total number of enchantments you control. This type-shifting magic allows Voltaic Construct to target and untap the Weaver for a modest investment of two mana. Because Sanctum Weaver's tap ability yields enough mana to easily cover the Construct's activation cost and leave plenty to spare, you can cycle this loop indefinitely to generate infinite colored mana and infinite untaps.