my build http://www.tosbase.com/tools/skill-simulator/build/n49g51iwds/
i will need some SPR or i can go full INT ?
Don’t go 1 stat its bad and gimmicky
I like the build. Unsure how well the high cast times from Ele do without Surespell/Quickcast though.
As for stats, I have seen mention of 4 INT:2 SPR:1 CON for dps Wiz builds. That seems quite a decent split imo.
If you really want to go glass cannon, go for 4x INT : 1.5-2.0x SPR This stat allocation ratio offers you sustainability throughout your grinding. If you think you need HP, add a bit of CON(-stitution), the ratio being mentioned above.
Edit: Btw, at least spare a single point for your ability Rain. It synergizes with Electrocute.
IDK about stats, but the stat build the others mentioned seem to be decent enough since almost all the skills depend on MATK for their damage, unlike on the cleric’s side where the scaling will also depend on the stat themselves like INT and SPR.
Anyways, in regards to skills build, I honestly prefer Electrocute than Hail due to the effect of Rain and Linker’s Joint Penalty (with attribute). As for Meteor, they said that the casting time depends on its level (1s/lvl), so lvl 5 is 5s casting time, in this regard, I prefer to leave it a lvl 1 since I don’t incorporate Quickcast on my build and the MATK multiplier stays at 400%, and the additional damage doesn’t seems to add much per lvl.
I just thought though, it seems Hail really is good as well since it does continues damage (according to the description) like Krivis’ Zaibas. You just need to find someone to pull the mob to the Hail circle. 
Better ? 