Myr Welder + Sword of the Paruns + Prismatic Geoscope

Myr Welder

Sword of the Paruns

Prismatic Geoscope

How it works

1. Activate Myr Welder using Prismatic Geoscope's ability by tapping it, adding at least 4.
2. Activate Sword of the Paruns by paying 3, untapping Myr Welder.
3. Repeat.

This crafty loop transforms a humble construct into a veritable powerhouse by feeding on the graveyard and the battlefield alike. It all starts once **Myr Welder** manages to imprint **Prismatic Geoscope** from a graveyard, granting the welder the artifact's domain-fueled mana-producing capability. With that activated ability in hand, tapping the welder yields an influx of colored mana that easily pays to untap it using the active ability granted by **Sword of the Paruns**. Because the sword allows you to cycle between tapping and untapping for a modest fee, you can repeat this loop indefinitely to generate boundless colored mana.