If someone tells you there is acid in a pill, or it is "trippy" - it's pretty much always pipes.
Ecstasydata has never gotten a pill with LSD in it.
Maybe it depends on where you are. It's mostly been MDA in my experience when people say that.
It's very possible to do, but not probable. More expensive to do, and much less of a market for the product. No reason to do this from a business standpoint, no buyers out there are looking for LSD/MDMA pills, so you're not going to mix LSD with MDMA pills.