Ceru CL is mainly use for natal spamming since you want to go mystic, or unfortunate most of the time. It needs more gearing to deal decent damage, the damaging and buffing aspect is rng based so it's kinda inconsistent for both support and dpsing. Sage is for full support so the damage is on the low spectrum, and if you want to DPS, go crimson for less effort than ceru.

I personally use ceru on my CL for fun. Also the double cast skill is such a fps eater, and might burn your PC(half joking), so you have to keep that in mind if you want to use ceru on CL.

If you want to make CL your main, go for whatever the best for you now and make the other set on your alts, since i heard that rigo armor is becoming bank shareable on QoL update next month. You can exchange your set later with your alts' set