Pedals that stack with the Warm Audio Mutation Phasor II

Wren and Cuff Box of War Small Foot Fuzz

Run Wren and Cuff Box of War Small Foot Fuzz into that low gain platform and it finally gets some high gain

Greer Black Mountain

Greer Black Mountain's fuzzy fills in what this low gain tone doesn't make on its own

Red Witch Titan

Put Red Witch Titan after Warm Audio Mutation Phasor II in the signal chain, clear of Warm Audio Mutation Phasor II's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Boss DD-2 Digital Delay

Boss DD-2 Digital Delay's transparent voice goes after Warm Audio Mutation Phasor II in the signal chain — it's not there to compete with Warm Audio Mutation Phasor II's own low gain character — goes in the amp's FX loop (or last, into a clean amp)