User blog comment:Rapacious/Rapacious's sexy guide to understanding ranged AD builds/@comment-131.174.224.196-20120201222441

Phantom dancer: 30% of hits will crit for 210% dmg -> 0,3 * 1,1 (without infinity) = 1,33 more dmg 55% more hits -> 1,55 more dmg including the above criticals Overall 2,06 more damage without infinity, 2,29 with infinity Armor penetration: 40% ArP reaches at most 67% extra damage (high armor) 45 ArP gives at most 35% extra damage (base armor 30) In summary: either phantom dancer is epic and ArP isn't, or I suck at maths.