You right, he is like that deep sea fish just without glowing thing on its head. But quaggans are more like a pufferfish, they change form when they get mad. It's just that they're ashamed of it so they forcefully try to be nicest possible. You're still a young player, it will take some time till you truly start understanding the flow of combat, abilities and combinations at play. Don't worry about that or the drip now, the endgame in Guildwars is mastery and wardrobe style, not gear progression. Mastery of your character and abilities, because any class can be played in many different ways. For now check your "Ultimate" skill, number zero, last one on the skill bar. You're mostly using legendary assassin stance so his ultimate is Jade winds, that freezes all enemies around you for a few seconds. Try letting several mobs attack you and cast 0, you'll see. All in all - when surrounded, use ult. When you wanna be surrounded, use ult. If you don't have energy, pressing F2 will boost it a little. Revenants are a relatively hard class to play.