Guild Wars 2

Where do I go to find more information about Ascend and Legionaries? Also, what is “lving world”?

OK, so I haven’t played since around New Years, when I net a good job and didn’t have time to play as much.

I am level 80, trying to figure out what I should be doing to get better gear/gold ect. I also am very into PvP but forget how to enter World PvP and find combat.

Any tips would be nice