This build depends on DEX and FAI to deal a lot of damage even to your thick armored foes and to dissipate as fast as you attacked
Lightning bewitched alonne sword +5 (dlc)
Lightning dragon chime =5
Rings: Third dragon ring
Simpleton's ring (dlc)
Chloranty ring +1
Royal soldier's ring +1
Denial (dlc) ,
(no must) great lightning spear
This build is rather hard to play due to the fact that you have neither any armor nor a shield.
If you like, you can scale up adaptility.
With the sunlight blade you have a powerful buff before the battle and denial trolls your enemies in pvp. And if you need a buff in short time the swords buff will help out. (you can switch the +1 rings with the better versions if you are in ng+)