Talk:Void Staff/@comment-4002474-20110604191505/@comment-3486816-20110712082206

@above. Assume your opponent has 100 mr. First of all the abyssal scepter's mr reduction would be applied, lowering their mr to 80. Next, sorc's shoes mr penetration would be applied, lowering their effective mr against YOUR OWN attacks to 60. THEN void staff's % penetration would be applied, which would at this point only penetrate 24 of their mr. If all you'd had was a void staff, it would have instead penetrated 40 of their mr. The order in which different types of red/pen are calculated causes stacking different types together to reduce each other's effectiveness in some cases, and this is especially the case with % penetration. You can see more on this at.