First off, I underestimated the defensive properties oh Havels shield. There is NO WAY that a 90% reduction in magic makes Crystal Soul Sphere do like 40 damage in total. The shield is pretty much indestructible, and as such you can block, instead of dodge. I believe others have told me this before, but the shield is so efficient that I had to see it to believe it. I'd call ******** otherwise.
As you have 50 strength, the Dragon Tooth does a lot of damage on each hit, and you have enough poise to just cut loose and give the swing regardless of what your opponent is doing. Be aware of parries, as they might occur. The weapon is more efficient with Sun Light Blade on it, and yes, the tooth can be buffed. In many cases, Sun Light Blade can be stronger then Dark Moon Blade purely because of defense differences. Do not hesitate to use it instead of DMB.
If you have the urge to annoy the *** out of someone, you can stand with your back to a wall and place your shield up at nearly any time. The average spell caster has approximately 40 hostile casts of their dangerous spells (WoG, Great Combustion, etc, have less). You can easily soak up an entire armada of spells without loosing more then a third of your HP pool. I once lost about 1200 total from a spell-caster with a surprisingly large pool of spells.
Players are likely to attempt to backstab you when using this build. Kick them. Kick every last one of them. Kick parry users too, they will also stop.
Your crossbow is very good for opponents that run. This addition to the build has turned many matches from losses to wins.