New thief seeking advice (WvW)
Don’t rush engi or guardian. Most of those will take time to crack. Figure out your short bow spots ebg has more than the others and step can reach others.
Oh and stealth all you want. Other factions LOVE that.
First, be patient with your fights. Burst is good but don’t stay out in the open too long as you aren’t particularly tanky as a thief. My advice for some traits (just cause it never hurts to have more input) in shadow arts would be to take shadow’s embrace for condi clear and then shadow protector with shadow’s rejuvenation. Initiative regen covers your expensive CnD so the extra regen you get from going into stealth helps you fight outnumbered in the many cases that happens and then in 1v1 it gives you crazy sustain.
Tricks that are nice on D/D are combining steal with CnD for a near guaranteed stealth. I also like having withdraw as a heal 1 for evades 2 for the low cooldown giving again, more sustain in a fight. While some thieves like to use basilisk venom as their elite, for roaming as a thief I would suggest dagger storm. It’s especially helpful against projectile heavy classes like LB ranger and Staff ele who if not paying attention will do a full burst onto your reflect and kill themselves.
Another trick/tip:
Despite the fact that some call this cowardly or cheap, stealth stomping is your best friend in roaming situations, especially outnumbered. Shadowstep stealth stomping is good when the other team puts aoe or cc on the downed person.
Hope this helps, if you have any more questions feel free to ask and I’ll do my best to answer.