I will start of with a very generic ‘‘it’s entirely up to you, as you wish’’ response but I’ll go more into what I personally chose and like what are generally considered good options as well.
2 of the meta builds (Both with cryo3):
Sorc2Necro2:
In terms of raw power it would seem like sorc2necro2 is the better option. Necro also provides a good debuff on monsters that will increase templeshooter (one of the strongest boss cards currently) damage.
Sorc3Sage:
Both are good builds and it really only depends on your preferences. This in part is due to sorc3 skills being weak and sage being heavily a support/utility circle. In my opinion tho sorc3sage builds can reach high enough damage and is even more heavily reliant on the usage of riding skills than sorc2necro2 build. (And obviously sorc3 summoning power is stronger but necro provides more minions to make overall dps at least potentially higher, not in all cases tho. ) This is a build I personally chose and main in game, really love it.
Note:
I want to mention the option of taking wl2/ff2/elementalist3 with a sorcerer 2 builds which some do that are totally viable options to go for but not considered optimal.
Low rank options:
Sorcerer:
Pyromancer c1-3:
Pyromancer is the most popular option for sorcerer right after cryo at low ranks. Personally haven’t tried this build so can’t say much about it but considering the current bad state of pyromancer I wouldn’t recommend it. However if you want to go for such build for thematic reasons or just for fun it’s definitely fine. Damage is currently not high enough and summons don’t receive enchant fire buff, but it does scale with spr.
Linker c1-2:
I wouldn’t personally build linker with sorcerer, it’s not terrible but I feel cryomancer is much better for grouping larger mobs and I find that personally more helpful. Some bosses also have larger aoe skills which in my opinion defeats the purpose of using links.
Necromancer:
Pyromancer c1-3:
Mostly same reasoning as with sorcerer. Less popular I think but with necro even more people go with cryo3 build for meta afk farmer. Only once afk farming comes to an end and when people will be able to reset their characters can we truly get a better perspective on what active necromancer players build.
Linker c1-3:
With necromancer I have different opinion considering linker than with sorc. I personally have built mine with wiz3link2necro3 build and I truly enjoy playing this build. The biggest reason for this was that I didn’t want another cryomancer. And I don’t regret my choice at all, link works nicely with necromancer and wiz3 helps you use skills like flesh cannon and flesh strike. Also while not overly powerful anymore I find link and magic missile combo enjoyable to use and with gather corpse and energy bolt you get a more active role when other skills are on cooldown.
Psychokino c3:
This build in theory could work and I’ve seen only a couple of these but have never heard much comments on it. I don’t suggest doing it unless you want to test it but it’s something I found personally interesting and would love to test it at some point. (Which I why I thought it’s worth mentioning.)
Some blabber on making decisions with builds which you can totally skip reading lol
Personally I’m the type of person who likes to take classes up to c3 in almost all cases, I have a sorc3 and necro3 separately. I feel better playing a class that is more focused into the role it has instead of being a mix of two, even if the mix is better in terms of raw power.
Some things to consider also are future plans for the classes. A lot of people playing sorc2necro2 are set on a path to go necro3 once rank9 hits, personally I dislike this type of option as I don’t get to experience something new. (Then again it’s not certain if new would be better or even good tho…)
There is also always the potential of buffs class can receive, sorc has currently one of the worst c3 skills in game and this could change which could definitely change the value of choosing a sorc3. (But perhaps that’s not something you want to consider as it might not happen.)
There is also now being a rumor that there might be a rank 8 released hidden class for wizards called shadowmancer which can potentially change all this.
Just consider these when deciding on the path you want to make, what do you value in a build.