Enchanter 2 is more taken for Lightning hands in order to make an AA build, but it is up to you and your playstyle.
For exemple I have a WizPyro3Kino3Enc2, and I’m using both AoE skills and AA. Actually, even if you go Enchanter 2 for Lightning hands, you cannot only rely on your AA as the AoE radius is very low. But I’m sure spells that deal more than 1000% of your mAtk are way better than giving to your Kino skills lightning attribute. Now you have to test by yourself as we have free resets until April 10 (if I remember correclty), because of course Sage2 is a good burst class, but it has not the DPS of an Enchanter2.
Btw, the changes are really good, even if I’m a little bit bothered with the amount of items you need for buffs and I’m not really ok with this change (it’s more annoying than useful to be honest).
Here my actual builds :
WizPyro3Kino3Enc2 (I want to keep Pyro3 and Enc2 but I don’t know what could be the best for me instead of Kino3, because I don’t want to cast 30 buffs everytime, and I like the combos with the three classes)
Wiz3Elem2Link2Sage2 (I will not change this one, it’s the funniest build I ever played with for the moment !)

Of course you have to wait quite a bit for JP+HK and to go for the perfect swell combo, but you still have plenty of skills to use in that time. Magic Missile is actually decent now, same for Earthquake, both with low cd and overheat 3. Ngadhundi (low cd) and Bone Pointing (DoT) help a little too. And don’t forget you also can use Levitate, Blood Curse and Blood Sucking for those bigger groups or when your swell combo is on cd. It’s a very well rounded build in my opinion and, as pollitochikn just mentioned, you can run it with low budget.
but you could tests a few distributions during the reset event. I’d start with 100SPR invested and check how it goes. I have a FF I’m leveling (swell farmer build) because I resetted my old FF3 to other class, and I’m having no mana issues in dungeon. I’m almost FF2 with only 20 points invested in SPR (+18 coming somewhere from gear) for a total of ~500 sp regen. Not a single pot needed, because I mainly use magic missile and JP+HK combo on the mobs. I hit hard and it doesn’t cost much sp. It will get a little more sp-hungry with FF3, or if you run hitting with Elementalist skills, but you can get an idea more or less of how much you need by testing for your specific build.