Colossus by Mojo Hand FX is a Russian / CivilWar muff circuit with mids control

ALL HAIL THE COLOSSUS!!! Unleashed on an unsuspecting public, the Colossus is the be-all-end-all Russian/Civil War Muff-style fuzz. It is ridiculously tweakable, insanely versatile, and packed with 10 tons of colossal mojo. Rich harmonic drenched chords, sweet singing leads, sludgey stoner goodness, filthy bluesy mcnasties, pumpkin-flavored raunch. You name it, it does it. It features a 3-way toggle for different EQ voicings, as well as a full range “Mids” control to help you cut through the mix in a live setting.

https://mojohandfx.com/products/colossus