@Grahamhsu
Actually, that's not how damage is calculated at all.
You have the 500 damage output of your MC, substract the Defense ration of the other's player character, so per example, I have 230 defense ration against Blunt and Slash (MC main damage output), so you'll only be doing 270 tops to my character, unblocked.
Take the 85% Guard Reduction and you'll have that you'll only do 40,5 damage to the other player's stamina. At 160 Stamina, counting that the other player doesn't have Eternal King's Ring which regenerates stamina faster, you'll have to hit him at least 4 times before you drain his bar.
At 160 stamina yourself, you can only do 3 R1 attacks or 2 R2 attacks tops, so no way can you drain the stamina bar of a PFS +10 character that fast :)
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