Guild Wars 2

Also will i be able to craft higher level items as my craft levels up? do i have to discover the higher level weapons and armor

I have Weaponsmith and Armorsmith as my two crafting professions. When I slay a monster and it drops an item that i can use to craft, it shows a (25) and it will say weaponsmith and be green or like armorsmith and be red. What does this mean, can anyone explain this to me, the numbers also?

Do guardians have AoE’s?

Hey Guys. Im fairly new to the game. Im looking for a character to make. I have a Elementalist and its fun, just really not my style, I’d like a character that is good for solo, I do alot of solo. Also that can level up at a good rate and has good survivability. Any ideas?
~Thanks in advance,