Btw, there was a thread on the same subject (fort bypass) some months ago.
i ignored some of those because they are Fort Reductions, not Bypass.. but i suppose if we were to count those...
These are not Considered Bypass or Reduction, but rather both
Bow/Silver slinger already listed above
Blasting/Epic Blasting: 20% fort from Construct like beings.. Works just like Bow/Slinger
Wrack Construct: up to -50%
These Reduce rather than bypass
Destruction/Improved Destruction/Destroying: dont stack together - up to 15%..
Insult: 10%
Improved Sunder: 10%
Shield of Condemnation: up to 50%
Touch of Despair: 25%
Quote:gp 15
pc 10
5% guild
25% precision
10% Opportunist
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All Stack without any issues to 65%
Thunder-Forged piercing weapon 35%
20% flawless black dragon scale
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Both are coded as the same type, thus do not stack together, though do stack with the above respectivly.
Totaling 100% or 85%.
20% - Silver Flame Bow/Epic Silver Flame Bow
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Undead Specific, Stacks with all above forms (including 20% Armor even though both are item based). Does not work with TFW, since you cant hold a TFW + Bow together..
Totaling on undeads - 115%
stole this from above.. i fixed an error, i was under the assumption that silver flame bow was 25, but its 20..
alright.. so we then have:
Piercing Clarity: 10%
Precision: 25%
Opportunist: 10%
Grim Precision: 15%
Armor Pierceing: 35% (20% if using Black Scale instead of Thunderforged)
Guild Buff: 5%
--------------------------
100%/85%
Due to Opportunist - requires 10 rogue.. so we will go with a 13 rogue/7 monk
Destruction (weapon or armor): 15%
Sunder: 10%
Touch of Despair: 25%
Insult: 10%
-----------------
160%/145%
+ 20% towards Constructs with Chime on
+ an additional 50% with a high enough Wrack Construct DC
because.. being thorough is important