Guild Wars 2

So i want to 2 man some dungeons as my thief with a buddy of mine. My friend plays Guardian/Ele. Is it possible for a thief to 2 man dungeons with 1 of those 2 classes? Also What dungeons would we be able to run and would we have to use certain builds? any advice would be great!!!!!

guard bring you missing reflects and bit of protection if needed while ele is more versatile, can bring you dps or support when you need. So both are ok, maybe decide when you select dungeon what could help you more.

First you can do all dungeons you can solo as thief anyway (CM1-3, arah). Same for other classes, so you can add AC to your list (ice-bows for burrows…).
For Builds i’d suggest jsut try out. Start with full dps and go down when ever you fell you need it. Same for gear. When i started soloing cm i got dps, cele and a contidion gear, which helped alot on first tries.
Most important think is to have alot of time. Just plan in 2h for your first try. By time you might get faster, but nothing sucks more than fighting 1h to endboss and then you got to resign due to reallife.
gl hf

2-manning stuff with a thief is easy!

Like SuinegTsol said, having a guard is nice for survivability and reflects (usefull in CM), while Elementalist has very nice DPS/AoE/Support.

If you plan to run AC (p1/3, 2 might be a bit hard) I would definately pair up with an ele, because it makes burrows so much easier and you barely need any protection in these paths.

CM might be the easiest dungeon to duo. If you are new you might want to take a Guardian with you, mostly for its protection and reflects.
If you get a bit more experienced and are able to easily survive, you can swap the guardian for an elementalist for faster runs.
A lot of stealth can and will be used in this dungeon, so have fun being usefull

For TA I would go with an ele at first, unless you find yourself dying a lot. Ele AoE is very usefull here since most bosses have large hitboxes, and ele aoe will melt the last boss. Reflects are barely needed in Up since most attacks (Malrona / Wurms) can’t be reflected anyway, and Smoke Screen will be enough to handle most projectiles in Fwd.

I’m not very experienced with solo/duoing SE, so I can’t really give good advice here. The paths aren’t that kittence you know them well, but bosses like Tazza in p1 and the 3 golems before (you can pull these 1 by 1 if you are very carefull) might be a little hard, so get to know these and practice. P3 is faily easy, I would probably go with ele for this run, since the Clowncar and last boss have large hitboxes. While you can’t blind Dredges, you can still block/reflect/destroy projectiles, so make use of you SmokeScreen (and Swirling Winds on ele or Wall of Reflect if you go with Guard).

CoF I would not recommend. P1 and P3 have gates where you will need more than 2 players. P2 is doable, but might be a bit kitten some parts. The part where you collect bombs will be very tight since it is timed, so plan your way well and make good use of shadowsteps. The bomb-room (time-gated) might be too hard with in-experienced players and even experienced players. So be prepared to fail this a lot.
If you choose to do this path, I would go with ele for its AoE.

HotW I do not recommend either. The bosses have very high HP and the paths are long and boring.
If you still want to do this dungeon, stick with p1. This one is the easiest. I would probably go with ele here for more damage, but if you have trouble staying alive go with Guard.

CoE is very fun and one of my favourites. It isn’t that hard, but take a bit of coordination. If you can get past the laser part, this path is very doable. You do both need teleports here, and timing is critical. I think there are some videos of it on youtube, but it isn’t too hard to figure out yourself. Coordinate well on alpha fights, clear crystals asap and watch out with his AoE attacks. Staying melee and knowing when to dodge makes these fights very easy.
P3 requires a third man at the destroyer.

I would say Arah is pretty easy if you know where to go. Bossfights are pretty basic and easy, but the skips require some knowledge of the dungeon. I don’t think you will need much survivability here, since you can prevent almost everything with a simple dodge, so go with Ele. You might have some trouble with the bugged (?) Lupi attack, but Lupi will be the hardest part of it all.
Skip p4, it is hard to duo, and takes very much effort and time.
This dungeon is pretty sellable as well, so you both could make some decent money here

As for builds, I would just go full berserker on both. Guardian might go a little bit defensive, but once you are more experienced full berserker is the way to go.

For more in-depth info about dungeons you can take a loot at gw2dungeons.net
This site also contains record-runs (5man, 4-man, trio, duo, solo) where you can learn a lot from, I would definately suggest watching videos of duo/solo runs.

Good luck and have fun