The great thing about this game is that you are able to theory craft and make any build you want.
For you, I’d think of Cyro, Sorc, Wiz C2, Linker, Chrono, Psy c2.
Cyro becuase fireball + icewall + psychic pressure would be a really strong combo.
Fireball + PP already does a ton of damage, but it’s limited because the fireball moves away. With an icewall behind the fireball; you can get a full duration fireball PP blast which also shoots icewall. PP+Icewall already one shots bosses, PP+icewall+FB probably would cut down a mission bosses health by a lot if you did it while in a safety wall!
Sorc is great because the BUFFS. AoE Ratio, SP recovery, and +50 dark property are amazing buffs. Plus with a pet, you can jump around casting your skills as it does DPS, that’s pretty nice.
Wiz C2 because sure spell. Getting your skills canceled all the time sucks. SureSpell saves you from that (unless you get hard cc’d).
Linker. JP+HK are amazing. Shared damage on 5 mobs is great, you can never go wrong with linker, works with everything.
Chrono is even possible because stop and slow. Slow will allow you to get your long Ele casts off before mobs slap you in the face, and Stop is the amazing skill for you. can drop stop on a boss too… plop down all your fireballs on the monsters, then cast hail and prominence - once the stop duration ends, the monsters will be incinerated. Sucks that stop cool down is long.
Psy C2 just for the stun attribute. This will allow you to mob, drop your flame ground, and stun them all ontop of it.
Don’t listen to the guys in this thread, and come up with your own build. Be unique! You’ve already proved that you can level up just fine with the build you currently have. Don’t go boring meta and find something else that works.