Not only do the mobs, like the Rotting Skeleton in Dreadlands, drop multiple medallions (4-6), but there is a mix of medallions in the ones he drops. Then, if that isnt working in your favor - you can still target farm the ones you're missing. The 8 hour spawns can be a bit ridiculous, but theyre just annoying - not impossible. Just like the other annoying parts, such as charming, or doing illusions/sneaking for other parts. Some parts are still mandatory to do, so random wont save you 100%, but it does a good job.
Just keep in mind that the Trakanon's Tooth has fucking COVID-like policies attached to it. Officers and Leadership first, necessary classes second, then it falls on raid attendance and favoritism for your rank and file to get one after the fact - only requirement is to link the completed medallion for all tooth handouts. I got a tooth pretty early on Mischief, so Im not throwing shade - just being realistic and asking each of you to do so as well. Whats at least "nice" about this situation is that if you dont have a key, you still get to log in, get counted for the raid and then you can go do some other shit ... like finishing the medallion. So dont get butt hurt about it - at least with Faceless, you can bid on the loot if you were present during role call.
Like others have also pointed out, you can just buy all of these pieces, though. I bought one? two? pieces just to finish it up and get it out of the way. I saw people buying Trak teeth from Whatever Greed is Good was called at the time. So its possible to just brute force it even as a social pariah.
I personally am not a fan of VP and the effort it requires for the loot it "mostly" drops. But I know there are plenty of you out there that have never even seen VP while its current. So if you need help after you're 60 with medallion pieces, feel free to reach out to me. As long as I actually know you, anyways.