Do all sorts of resist reduction stack multiplicatively or can it happen that one instance gets ignored?
In particular I am looking at following Blademaster setup for Pierce res reduction:
Plaguebearer’s Derm. Slicer: -15%
Mask of Delirium Actice Skill: -20%
Black Star of Deceit: -15%
Night’s Chill: -30%
Assassin’s Mark; -28%
Does this result in a total res reduction of -70.86% ?
This is the thread about mechanics - I believe the 2nd post contains an in-depth explanation of how RR works. You can only have one source of flat (i.e. Black Star) but other forms (-33% “n” resist) typically stack.
Plaguebearer’s: -15 flat RR
Essence of Ch’thon Weapon Augment: -15% Reduced target’s Res
Assassin’s Mark: -28% Pierce Res
Night’s Chill: -30% (or a bit more) Pierce Res
Total: -88 Pierce Res
Or, with Manticore -25 flat RR, in total -98 Pierce Res.