Pedals that stack with the Catalinbread Antichthon Otherwordly Oscillating Fuzz

Caroline Guitar Company Somersault

Keep Catalinbread Antichthon Otherwordly Oscillating Fuzz's dynamic voice out front: Caroline Guitar Company Somersault goes after Catalinbread Antichthon Otherwordly Oscillating Fuzz in the signal chain so its modulated voice doesn't muddy it

Catalinbread Giygas

Catalinbread Giygas layers octave onto an already fuzzy signal

Fender Blender

Fender Blender layers octave onto an already fuzzy signal

Pigtronix Echolution

Pigtronix Echolution's modulated voice goes after Catalinbread Antichthon Otherwordly Oscillating Fuzz in the signal chain — it's not there to compete with Catalinbread Antichthon Otherwordly Oscillating Fuzz's own dynamic character — goes in the amp's FX loop (or last, into a clean amp)

Walrus Audio Melee Wall of Noise Black

Put Walrus Audio Melee Wall of Noise Black after Catalinbread Antichthon Otherwordly Oscillating Fuzz in the signal chain, clear of Catalinbread Antichthon Otherwordly Oscillating Fuzz's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

W-LM Compression Fracture

Both lean toward dynamic and compressed respectively — close enough in character that they complement instead of clashing