Guild Wars 2

Hello Everyone,

I’m a total newb at Guild Wars 2. I’ve only been playing it for about a week now. I have gained 5 Masteries Point, but when I open “H” there is a locked icon next to it. Can someone please point me in the right direction?

Thank You

https://wiki.guildwars2.com/wiki/Mastery

I appreciate the link. Thank you very much