another suggestion, you could use a ebotdz, which is what i am currently using now, less str require, and a +30 all stats, which boost your block rate by a whole lot
i already played with my auradin in pub duel games quite a few times, here is some experience that i had,
1. impossible to kill windys and smiters, and hdins with the exception of team plays
2. 100% winning rate vs casters (so far), cold sorc could be a problem tho
3. can do nothing against really good bone necro, unless u get a teleport ammy or nigma to teleport away from the wall
4. suprisngly i was able to kill some bvc, with patience... very long duel and you have to hope your charge land on him after his ww.
5. about 70/30 vs bowzon, 50/50 vs chargezon
honestly, against a charger/smiter or any combination that include smite, a charger/auradin variant has no chance IMO, i am currently at 2.7k health without cta bo, 86 fhr lvl 25 conviction, 75% block and about 13k dmg with charge ( i only maxed the charge skill, and no might or vigor).
From the build you listed before, I am not sure adding might/vigor will give u that much of a difference that make you able to kill those tanks or windys. So i may suggest this, don't quote me on this though,
20 resist light
20 charge
20 smite
20 holyshield
16 or 18 into conviction (if you use COH, metalgrid/maras, ptorch, anni and cta boost that gives 7/9 skills)
rest into might/vigor or whatever
and maybe use fort/ber'ed shaftstop with dungos to hit 50% dr
by the way, i am thinking of remaking my auradin to something like that i listed above, the auradin i am using now is still with +20 resist fire skills that i screwed up on.
also, some comment on this if you have other ideas, thanks