Pedals that stack with the Empress Effects Compressor MKII (Blue Sparkle)

Fjord Fuzz Berserk

The transparent tone has headroom to spare — Fjord Fuzz Berserk gives it fuzzy to fill it with

Suhr Rufus Reloaded

Run Suhr Rufus Reloaded into that transparent platform and it finally gets some fuzzy

Dunlop Used MXR Sugar Drive

Empress Effects Compressor MKII (Blue Sparkle) leans toward compressed, and that's a real, usable character to pair with

Neunaber Wet Mono Reverb Pedal

Put Neunaber Wet Mono Reverb Pedal after Empress Effects Compressor MKII (Blue Sparkle) in the signal chain, clear of Empress Effects Compressor MKII (Blue Sparkle)'s own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Boss RV-5 Digital Reverb

Run Boss RV-5 Digital Reverb after Empress Effects Compressor MKII (Blue Sparkle) in the signal chain, clear of Empress Effects Compressor MKII (Blue Sparkle)'s own gain stage — goes in the amp's FX loop (or last, into a clean amp)