Talk:Kog'Maw/@comment-79.54.47.224-20120613210802/@comment-72.152.230.107-20120615163500

The 12% damage comment about LW is misleading. 100 armor grants +100% ehp versus physical damage, giving you 200% total ehp versus pdam. LW shaves off 40 armor which drops the enemy to 160% ehp versus physical. That's a drop of 20% total ehp (40/200 = .20), which means 20% less health you have to chew through to finish them off, which is equivalent to 20% increased pdam against the target, not 12%.

You're paying 770 gold for that penetration effect... seems like a good investment when just another pickaxe would no longer increase your attack damage by 20%+ (around 150+ AD or so), especially considering even glass cannons have 70+ armor by late game just from leveling.

Though its effectiveness is diminished when you consider kog's split damage, but that's a separate issue.