Captain.Heroin
Bluelight Crew
That would probably have you pretty far out there.
The only things I have mixed with MDMA for IV admin. Are Oxycodone and hydromorphone.
The MDMA and hydromorphone injection was before I was really into IV MDMA as well. I'm pretty sure I wrote a trip report about it.
On that note, I would IV certain tryptamines.
haha oooh sounds like an interesting, psychedelic-ish speed ball. :D
I would mix bupe, MDMA, and DMT together, for sure. I would love that. I have already done IV DMT on top of LSD (taken sublingually hours ago), and I've also taken a nitrous hit on top of IV DMT and LSD (taken sublingually hours ago as well).
One of my close friends did a shot with several drugs in it, including cocaine, ketamine, DMT, LSD, and probably one other drug (could be MDMA, not sure).