Notes from author
Using the (Silver Knight Straight is more proportional to your character and the faster swings better mimic Gwyn's attacks.) Gwyn could form Great Spears of Pure Lightning, so I thought; why not give him the ability to coat his sword with it. I also thought it was pretty lame you had to sacrifice poise wear his full set, so I replaced his Bracelets with the Catarina Gauntlets. Hope that doesn't bother your "Cosplaying-Ego" if there is such a thing.
Black flame is there to simulate his hand-explosion move, but if you don't like that, and want a shield to parry with; Simply take off 3 attunement points, then add 1 to endurance and the rest to Vitality. (It'll raise your 25% encumbrance limit just enough to add a Small Leather Shield over the Pryomancy glove, as well as give ya' some extra HP, of course.)
Anyway, enjoy. ^.^