It's for Bass I swear. In order it's a tuner, Bass Balls, a Boss Compression Sustainer, a Morely Power Wah Boost, Big Muff, Route 66 Overdrive Compression, and finally a MXR smartgate :
Morley Man FX Cliff Burton Fuzz Box Pedal MCF B&H Photo Video
CliffBurtonDay - 5 Essential Pieces of Gear – t.blog
CliffBurtonDay - 5 Essential Pieces of Gear – t.blog
Gear Rundown: Cliff Burton
The Morley History – Morley
Morley Announces Cliff Burton Tribute Series Power Fuzz Wah Pedal – No Treble
Cliff Burton Rickenbacker History: The Cliff Burton “FrankenBacker”
Alembic Club: This bass player uses this effects (and amps)
10 timeless bass guitar tones and how to recreate them | MusicRadar
Cliff Burton Effects Pedals - Metallica Know Your Bass Player (2/2) - YouTube
Morley Cliff Burton Power Fuzz Wah Pedal PFW-C B&H Photo Video
Cliff Burton Rickenbacker History: The Cliff Burton “FrankenBacker”
My Cliff Burton Pedals : r/basspedals
CliffBurtonDay - 5 Essential Pieces of Gear – t.blog