Scuttling Sliver + Trazyn the Infinite + Prismatic Geoscope + Conspiracy

Scuttling Sliver

Trazyn the Infinite

Prismatic Geoscope

Conspiracy

How it works

1. Activate Trazyn using Prismatic Geoscope's ability by tapping it, adding at least three mana of any color.
2. Activate Trazyn by paying 2, untapping it.
3. Repeat.

By casting Conspiracy and naming "Sliver," you rewrite the nature of your entire deck so that all your creature cards everywhere gain the creature type needed to bridge this engine together. This allows Trazyn the Infinite to inherit the static and activated traits you need, specifically borrowing Scuttling Sliver's ability to untap itself for two generic mana. With Prismatic Geoscope sitting in your graveyard, Trazyn also gains the domain-powered mana-tapping ability, letting you tap Trazyn for a windfall of colored mana that easily outpaces the cost of the untap. The result is a self-sustaining loop of tapping for a surplus of mana and untapping for a bargain, churning out infinite colored mana to fuel the rest of your game plan.