I'm a tank, I don't know if mage is wanted/needed on a tank though.
I wanna level mage but not sure if it's smart.
Currently am 63 ranged 60 def and 74 prayer.
Discuss.
It helps, if you raise it via curse or alchemy then you won't gain any actual combat levels from it, assuming you keep it the same level as your ranged.
Mage is very important in P2P (which, as stated above, it looks like you're building for) so you can Veng. If nothing else, it won't really get you combat levels, so you may as well level it.