Ertha Jo, Frontier Mentor + Clock of Omens + Oreskos Sun Guide + Mycosynth Lattice

Ertha Jo, Frontier Mentor

Clock of Omens

Oreskos Sun Guide

Mycosynth Lattice

How it works

1. Activate Clock of Omens by tapping it and Oreskos Sun Guide, targeting Oreskos Sun Guide.
2. Ertha Jo triggers, copying Clock of Omens' ability, targeting Clock of Omens.
3. Resolve both Clock of Omens abilities, untapping it and Oreskos Sun Guide.
4. Oreskos Sun Guide triggers, causing you to gain 2 life.
5. Repeat.

This clever setup relies on Mycosynth Lattice to turn everything on your board—including your creatures—into artifacts, which unlocks the untap potential of Clock of Omens. When you use Clock of Omens to tap itself and Oreskos Sun Guide, Ertha Jo, Frontier Mentor steps in as the true catalyst by doubling that activation targeting your creature. As Oreskos Sun Guide becomes repeatedly untapped through this loop, its inspired ability triggers over and over to continuously generate infinite life for you.