I am new player and played this game for 2 weeks~, and the only class i have serious issue dealing with is thief. This class have good burst both melee and range and also godlike mobility, survivability, i play on 200ping and if a thief jump on me i start the fight with 50% hp in few sec, burn my cds then i go back to spawn point if the thief wanted to shit on me, i have very little chance of surviving. And it is the only class where sometime i cant even react to the burst and die very quickly. Sometime i just alt f4 after the game and refuse to click gw2 until some break.