Voltaic Construct + Prismatic Geoscope + Bello, Bard of the Brambles

Voltaic Construct

Prismatic Geoscope

Bello, Bard of the Brambles

How it works

1. Activate Prismatic Geoscope by tapping it, adding at least three mana of any color
2. Activate Voltaic Construct by paying 2, untapping Prismatic Geoscope.
3. Repeat

This clever loop transforms a humble mana rock into a powerhouse by leaning on Bello, Bard of the Brambles to give our noncreature artifacts the spark of life. Because Prismatic Geoscope has a mana value of 5, Bello's static ability makes it a 4/4 indestructible Elemental creature on your turn, which neatly turns it into a valid target for Voltaic Construct. Once the Geoscope is animated, you simply tap it for its domain mana and pay the Construct's activation cost to untap it, leaving you with a net gain of mana after each iteration.