So what problems specifically do you have with PLD in A4S? The DPS? Because mitigation-wise, PLD's actually quite good there (Bulwark/Sheltron vs Dolls and Strafs, Hallowed whenever you need it, Ramp/Sent for whenever you want). DPS-wise it falls behind DRK by ~80, but I think that is one of the few things that PLD needs buffed as DRK handles magic damage equal to how PLD handles physical damage and the discrepancy in DPS doesn't really make too much sense.