Talk:Magic penetration/@comment-84.245.8.250-20110318184109

This page says "Percentage Magic-Resistance Reduction can reduce a target's resistance below zero, if stacked to pass 100%.", but there's no way to achieve that kind of number in the game, because this stat doesn't even exist on items. Nidalee is the only champion that has a skill that reduces it by a percentage, up to 40%, this doesn't stack with a second Bushwack as it will only refresh the duration.

I'd also like to point out that for example a Void Staff and Archaic Knowledge do not stack additively but multiplicatively, as can be seen in-game, it will show 49% penetration instead of 55%.