Phy and Mag % - Obviously the higher the %, the more damage you will make. A phy of 61%+ is essential because you are Str, most of your damage (Silkroad gold) is physical. The mag % is slightly less important but it is not completely useless. 41%+ would be recommended. Attack Rating % - Extremely important to increase your damage. Works the same way as parry. This white should be at least 61%.
Critical % - As a phy build which is the most important white on your Blade. You probably would not be able to kill anyone your level (Silkroad online gold) without crits. As a Blader, crits are what kill your opponent in PvP. One crit will double your phy damage by 100%. Your 98 Blade should have a crit of at least 9 (58%) or more if you can afford it.
Phy and Mag Reinforcement % - White on your Silkroad Blade is the second most important. The phy rein % should be at least 61% and the mag rein % at least 41%. The reinforcements on the Blade work the same way as the reinforcements on gear, but increasing attack power instead of defense.