Talk:Gangplank/@comment-26967163-20150908032927/@comment-24795478-20150908044535

About the keg, formula is : Keg stack multicatively with other %penetration, then flat penetration is applied afterward. So with 6% of, last whisper and keg, the total % penetration is 1-(0.94*0.65*0.50= 69.5 %.Against <120 armor youmuu is better than lastwhisper and vice versa, if we count the keg damage.

About rune, flat armor is much better, as it give you much better effective HP against physical damage at early game, which is the state where GP is vulnerable the most. And 1 fact: heal scale better with resistance than health. And

Upgrade fire at will first as it have stronger zoning power than death daughter. His ultimate was never mean to be mainly a damaging tool.