Something about Calculator in Rohan
With a little work in aeros Rohan calculator, we found running 1 strength 1 vit each level and the rest in dex with the previously listed recommended equipment gives you 313 dex unruffled, and 375 self buffed. This is without earrings and eyewear too. So if you use those for both with 20 dex, you can be at about 425 self buffed, and if you have quickness nimble and alacrity.
You would have about 635, which is enough to increase your crit damage by one thousand in pvp. ja mens, 1k boost on your crits. Self buffed about 650 boosts, its lacking, but we hope it is enough. Actual crits should start at like 200 the crit boost imbue damage (Rohan Gold). Something to remember is that this class style is highly dependant on order swing.
We can not give good hope for success if you are dry fighting with just standing. Then again, we have not personally played a guardian, and nobody we know has played hybrid guardian in game (rohan money), so there is no data on that. Note to self, calculate effectiveness of a 100 strength sword vs a 35% melee sword. With such a low base strength, it may actually be stronger than melee%.