@ Bill (Monsta816)
You have 3 options (well sorta)
1. Casting Solo climbing to gain Ranks in casting (that is where it is at)
2. Healing Catas if you want to do faster MQs
3. Hybrid... a bit harder as you rely on melee / healing and you are built for casting.
IF... I again say "IF" I get to a warlock, my gear indicates that I go Hybrid... and I will be fine with that... I know I am going to get multiple cries if I join cata like that...
