I'll leave my opinion too, since I offcasted every class since when I came back.
Maybe unpopular opinion, but I think the best offclass class is monk. He can use staves like mage or warlock, so you don't have to buy new int items like daggers or swords. He starts with 20 int like paladin, and 40 vita is good enough to survive since you'll stay back anyway, the 55 vita offered from pala is overkill imo. I also think that monk is
almost as good as mage. Mage starts with 50 int and 20 vita, you are forced to put your 10 points into vita.
Usually you pass feeder in 1-2climbs. When you are at monk, you start with 15+ points (if you are not superlucky with sammy+pala), that means you have 35int and 40 vita as base. Ofc mage has still more int and skills charge a lot faster, but in higher levels the difference is not really noticeable. You go 99% of the time with mage abilities, like they already told you. Multicast is so slow at the start and need too many points in order to be useful. I'd pref taking powercast or even healback at that point, if I need a 3rd ability.
Paladin is of course good enough and healback is so strong (still bugged though i think) you can manage heals easily.
Ninja and samu are more tricky (sammy starts with 10 int

), I wouldn't cast them if I were you. You need REALLY good gear to cast with them, lower levels are a pain (1-10 usually are easy because most people have mana gear with int, harder levels are imo 10-30, when you are using pure int unless you are a dedicated offcast player) and you do little to no damage if you stat pure mana, and even in that case the chance to end your mana even when charm is in your acc slot is high. You need people who actually click / wls which are overpowered to not feel bad while climbing with them. Their damage output is still really good, if you have good gear - I am casting ninja now and I can tell you I can do more damage than some wls

(even though they heal and I usually don't because I am lazy). The change in the mq level really helped offcasting.
I still think melee is far superior, like most people here which have a lot of experience said.
This post was edited by Andrea94 on Oct 30 2018 03:48am