White Knight Beginning

Well i just leveled to 70 and got my job advance, but since of the new balance patch, what should i put as my first skill? Should it be lightning charge since i can use dual charges. or does someone have a updated guide? please and thank you in advance.

As usual, it's highly recommended to go for Fire Charge first, as there is nothing in the 7x levels weak to Lightning or Ice. Next up is your choice: keep killing Fire-weak monsters with Lightning Charge, or move on to Ice-weak monsters, and slowly build up Lightning Charge after that. Oh, and 1 point in Charged Blow is decent. You can use it when your charge(s) are about to expire, for a slightly stronger mobbing attack, and a chance of stun.

After Fire Charge is maxed, you can move to Dual Ghost Pirates in Ludibrium Dungeon. Power Strikes can deal up 6000+(depends how well you're funded. :f6 on them. It's very nice training spot that is excellent until you move elsewhere, such as Blue Kentauruses.

My build would not have changed because of the balance patch, especially knowing what we do now; that charges are added, lightning isn't counted elementally, and the elemental bonus is only 135% when stacked.

Dual charging only gives about 1~3k extra damage on what you'd do with both charges maxed, it's not worth putting your build around maxing both for dual charging.
I'd still do 1 ice at 70 for the freeze, then max fire > ice or lit(optional on which) > the other > CB > then dump into whatever you want. I guess maxing lit after fire would be nice for Vikerolas. But would limit your training to just those, or something you've no elemental advantage over(Why play a Wk if you have no elemental advantage over? Could've made a sader for that), and not red wyverns at 90-ish. :/