Guild Wars 2

You have to keep your distance in dungeons. The only time I melee a boss is when he’s at <25% health (heartseeker spam), and even then, I run out and kite as soon as my HP goes below 50%.

I suggest going for power+precision+critical damage stats, but you shouldn’t worry too much about gear below lvl 80.

Shadow Refuge and Blinding power are great for reviving downed teammates.

Thieves guild is good for single target damage, daggerstorm is good against huge mobs.

You don’t have a pet, so make sure to dodge/kite in general.
Use signet of malice (healing skill) combined with the poison field on your bow to heal while fighting.
You can easily outrun mobs, so RUN when you’re in trouble.
Don’t forget to use a nourishment (there’s some good cheap ones out there, like cherry pie)
Having a panic button like blinding powder can prevent a lot of deaths.
Oh, and if you’re dying too much, you probably shouldn’t be spending points in the deadly arts tree.

Chillax, Anet will just nerf Assasin’s signet’s active if they know what they’re doing. Good thief players shouldn’t be affected by that.

I don’t think shortbow needs a buff, it’s already very solid.
Maybe they could give us access to rifles?
(Not that I’d use one, but at least people will stop complaining about the “range issue”)

Standard spvp glass cannon backstab would look something like this:
dagger/dagger with shortbow
25/30/0/5/10
Berserker jewelry
Runes of scholar or divinity
Sigil of air on shortbow and mainhand dagger
The 5% damage sigil on offhand dagger

This isn’t really a balanced all around build, but it’s good for gibbing pub players 1v1.

Thief is better at 1v1, the other 2 are better at WvW zerging.