Well depending what you wanna use it for pvm ? Zeal/Fanatism and max synergy.

For pvp
I would max charge 7-10~ in charge synergy.
Max That cold aura and put 1-3~ point in that resist all aura and resist ice aura(been a while and i dont rmember name).
Put 10-15 in that skill that raise shield def and block rate.
Rest in Zeal and synergy (i think it s sacrifice).

Whit a template like that the damage will be huge, you target wont be able to run and if it does Charge !
Bang Owned.

So how it work in duel its use run/walk aura it s gonna be raised anyway it s part of the charge synergy. Once you get a lock on target Charge! and switch to cold aura once charge hit start using Zeal. If your enemy try to run away you can charge again and deal an ammount of damage he wouldnt like.


Of course you would be able to trade Cold aura for Fanatism but the diff in damage will make it useless as your charge will already be very nice and cold aura add Cold damage anyway.