Stone Deaf PDF-1X. I LOVE this thing.
https://www.pedalempire.com.au/products/stone-deaf-pdf-1x-ltd-edition-mcbess-artwork
My basic setup - HPF/comp/Octave > STONEDEAF > Dirt section > rest of the board.
My main use right now is an EQ adjustment from my main tone to kick in and out, with the "dirt" footswitch giving me a boost for big sections.
The ability to use this thing for anything from EQ adjustments, boost/cut, notch-filter, cocked-wah etc. It's a ripper of a pedal, but does have a learning curve, so I'd be reluctant to bring it to a gig without getting to know it first. I've currently got it on my guitar-board, but I feel it's going onto my gig/bass-board soon.