arcane mage

What do you think about choosing flask/alch or net/tailor for an (undead) arcane mage? I really like tailor net on other characters, but mages have some abilities to control your enemy or just escaping. Usually have healer with me, but random alone bg can also pop for me.

As the title says i just locked XP on my Arcane Mage and I need some advice for replacing my Heirlooms for example which is best? Staff, One hand + off hand , or Wand + off hand? and things like that. https://worldofwarcraft.com/en-us/character/stormrage/Dônút