Pedals that stack with the Beetronics Whoctahell Custom Cubo Magico

Univox Uni-Vibe

Put Univox Uni-Vibe after Beetronics Whoctahell Custom Cubo Magico in the signal chain, clear of Beetronics Whoctahell Custom Cubo Magico's own gain stage

Aguilar Octamizer (Bass Octaver)

Aguilar Octamizer (Bass Octaver) layers octave onto an already fuzzy signal

Fender Blender

Fender Blender stacks octave on top of the fuzzy already here

Walrus Audio Melee Wall of Noise Black

Keep Beetronics Whoctahell Custom Cubo Magico's octave voice out front: Walrus Audio Melee Wall of Noise Black goes after Beetronics Whoctahell Custom Cubo Magico in the signal chain so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Hungry Robot The Borderland

Put Hungry Robot The Borderland after Beetronics Whoctahell Custom Cubo Magico in the signal chain, clear of Beetronics Whoctahell Custom Cubo Magico's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

W-LM Compression Fracture

What W-LM Compression Fracture brings here leans toward compressed — that's worth building a pairing around