Yea, pain in the butt... Somehow I always end up finishing the fights alone, 7 years of hardcore raiding in WoW teaches a thing or two. In Twilight Arbor I always kill the poison cloud guy alone. Always
OK he was kind of hard to miss if you playd the game since the beginning. He is the final boss from grenths footprint (sorrows furnace) and was the first big update of GW1. Huge new dungeon, introduction of unique "green" items that can drop from bosses and you needed to complete 4 challenging quests before you could reach him.
Look for "Guild Wars Sorrow's Furnace" on youtube!
There's no 'melee' class in GW2, a warrior is just as good with a bow as with swords, doesn't matter what stat you have it will apply to every weapon you use. The battle system in this game is really good