Guild Wars 2

I tried all the classes and races during the double XP weekend and I have decided to make a Human Minion Necromancer my first ever level 80 character

My favourite Weapon is the Axe but i can’t decide which off hand weapon to use which is best

Also do we get to change weapons in the middle of fights

You have two weapon sets as a necromancer and you can switch between them every 9 seconds. I would suggest using Staff in one set (two handed) and dagger warhorn on the other. When leveling you often need cleave and Area of Effect as well as speed to move around. Dagger autoattack provides nice damage and hits multiple foes, warhorn gives you swiftness and AoE daze which is useful defensively, staff 1 has long range and has built in AoE fear on 5th skill. You can switch staff with axe & dagger if you really like axe. Axe is good single target damage so its preferred over staff when fighting bosses, however death shroud 1 (life blast) is usually used in these situations as it is somewhat sustainable unlike axe 2 with the cooldown.

How do I change weapon set i do have a nice Staff

You get access to your second weapon set at level 15. Definitely have a Staff as your second weapon. If you like Axe I’d recommend Warhorn. Traited it’ll give you perma-Swiftness from WH#5, and WH#4 is really nice for blocking heals/stomps/rezes in PvP/WvW. Focus if you need to stack up Vuln for bosses. And Dagger if you need Weakness, Blind and condition transfer.