Q: What order is armor penetration/MR penetration applied in?
(Credit to TiberiusAudley)
A: From top to bottom
% Based Armor/MR Penetration
Flat/Linear Armor/MR Penetration
Q: Can you reduce armor or magic resistance below 0?
A: Yes, although the only things that can reduce below 0 is Armor/MR Reduction. Both percentage and flat penetration do not have an effect after they get to 0 armor/MR.
My question is this. If reduction is applied first, and is the only way to reduce past 0...
Wouldn't it be impossible to reduce past 0?
It seems that even Fiddle's passive + Abyssal Scepter doesn't have enough potency to breach that threshold...
Help me out!