Scuttling Sliver + Trazyn the Infinite + Empowered Autogenerator + Runed Stalactite

Scuttling Sliver

Trazyn the Infinite

Empowered Autogenerator

Runed Stalactite

How it works

1. Activate Trazyn using Empowered Autogenerator's ability by tapping it, putting a charge counter on it and adding one mana of any color for each charge counter on it.
2. Activate Trazyn by paying 2, untapping it.
3. Repeat.

This clever setup turns Trazyn the Infinite into a one-man mana engine by raiding your graveyard for the right tools. With Runed Stalactite equipped to Trazyn, he becomes every creature type—allowing him to borrow Scuttling Sliver’s activated ability to untap himself for just two mana. Meanwhile, Trazyn’s Prismatic Gallery ability grants him the text of Empowered Autogenerator sitting in your graveyard, meaning every time you untap Trazyn and tap the Autogenerator again, the mana generated scales up exponentially. You simply loop the two borrowed abilities to produce infinite colored mana of any color.