Can’t speak to being on all of them but multiple psychedelics at once change the visuals a bit and add confusion, at least in my experience.

Instead of the usual LSD color shift and rhythmic “breathing” of the room, the visuals were more geometric and I didn’t have the same mental clarity. I got a nonstop stream of thoughts that would interrupt my ability to follow where the thought was going.

On top of all the other visual noise it was like my peripherals had a colored plastic overlaying what I was seeing, so it would appear more green sometimes and red other times.

I wouldn’t recommend it. The experience may be completely different from mine because mine was LSD, NBOMe, and a synthetic psilocybin analogue, but sticking with either LSD or psilocybin is way better. Each drug has its own side effects that are manageable by themselves but make it really uncomfortable when they stack. I remember being itchy, thirsty, and kept swapping from being too hot and too cold. I had energy but was couch locked. I wanted to talk to my brother and room mates but when I tried to communicate, new thoughts just kept coming in and I’d forget what I was trying to say halfway through a thought. It was very frustrating.

'Psychonauts' are people that explore their minds with drugs and they are really focused on exploring these things. Someone made a schematic some years ago, with a list of all kinds of drugs and how they work together.

Oc, I don't have a link, sorry..

I'm imagining an Inception-like scenario where you start at the first/lightest level, and then work your way down to the lowest/hardest, then slowly come back up, similar to peaking and the comedown, but with more stages. I'd imagine dosage would be a real issue here.