Scuttling Sliver + Trazyn the Infinite + The Eternity Elevator + Amorphous Axe

Scuttling Sliver

Trazyn the Infinite

The Eternity Elevator

Amorphous Axe

How it works

1. Activate Trazyn using The Eternity Elevator's ability by tapping it, adding CCC
2. Activate Trazyn by paying 2, untapping it.
3. Repeat

This clever loop turns the graveyard into an engine by letting Trazyn the Infinite inherit the activated abilities of artifact cards resting there. Because Amorphous Axe sits in your graveyard granting every creature type to everything you own, Trazyn counts as a Sliver and gains Scuttling Sliver's untap ability. Meanwhile, The Eternity Elevator rests in the graveyard ready to be tapped for mana through Trazyn, which you can immediately untap by paying the {2} mana fueled by that very same tap. By repeating this process, Trazyn channels the Elevator over and over to generate an endless supply of colorless mana.