Dropped into a Perilous lobby with a level 1 Necromancer and a level 1 Reaver as my level 13 Legionnaire the other day. I loaded in right when they failed the match (zone 1, not that that's surprising), but I decided to stay to help them get some levels. We loaded into another match (seemed like every single Perilous lobby I dropped into ended up being on Tevinter) and we got Venatori. We went halfway through zone 1 before a level 18 Alchemist dropped in. The Reaver and the Necromancer were pretty competent players, even at level 1, so they didn't drop as often as you'd expect (though, after zone 1, the Necromancer dropped once per zone and the Reaver got dropped once per zone after zone 2).
The Alchemist wanted to open a mage door, so me and the Necromancer went back to open it. I noticed that the Alchemist was equipped with starter armor, so I checked the player list and saw that they also didn't have a banner, title, or portrait. I figured that meant I had someone else to carry. We get to zone 2 and everyone except the Alchemist heads off to kill things. We get halfway through zone 2 before I realize that the Alchemist is leaching. After the mobs were dead, I shot a message to the Reaver and Necromancer telling them as much as we transitioned to zone 3.
The Alchemist hung back at the font room, of course, while the rest of us went to kill things, the Necromancer going to the Fade in the middle of the first pull. Me and the Reaver killed our way through the Venatori before bumping into a Druffalo that ended up running past us, followed by a group of Venatori. I figured that they were going after the Alchemist, so I let them, though the Reaver started to head back before returning his attention to the Venatori surrounding us. I positioned myself so that I could see the Alchemist's silhouette while fighting the Venatori, and sure enough, as soon as Druffy & Co. reached him, he started fighting only to soon get dropped. Wasn't going to bother reviving him since it'd be a waste of time, so I focused on the Venatori. The Reaver seemed to have the same idea.
Me and the Reaver cleared the zone and zone 4, at which point I told the Reaver and the Necromancer to kick the Alchemist. I waited outside the ring while the Reaver and the Alchemist waited within until the Alchemist was kicked. We dropped the banner, I popped a Fire Resistance Tonic, and off we went. The Reaver and Necromancer dropped pretty quickly and went straight to the Fade, so it was me against all the Venatori. Wasn't much of a challenge, though it was taking me a while to kill the Commander. A Templar dropped in and spawned inside the wall near the door before leaving. After I got the Commander's health to around half, a Katari dropped in and spawned in the same spot. He eventually got dropped by the Commander's WoF (poor positioning on my part) and it took me a couple more minutes before I got the Commander down to less than 1/4 health. Next thing I know, I'm in a loading screen and I'm sent back to the menu.
Apparently the host left and I lost connection. Would've gotten 4-5 levels worth of experience in that match alone, had the host not left. 