Scuttling Sliver + Trazyn the Infinite + Amorphous Axe + Prismatic Geoscope

Scuttling Sliver

Trazyn the Infinite

Amorphous Axe

Prismatic Geoscope

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.

This clever engine turns your graveyard into a mana-generating machine by letting Trazyn the Infinite borrow the activated abilities of fallen artifacts. Thanks to Amorphous Axe in your graveyard, Trazyn counts as a Sliver, which grants it Scuttling Sliver's untap ability. Meanwhile, with Prismatic Geoscope also resting in the graveyard, Trazyn gains the ability to tap and produce a wealth of colored mana that easily pays the two generic mana required to untap itself over and over again, leaving you with an endless supply of mana.