Talk:Kog'Maw/@comment-3493296-20160229162045/@comment-24496127-20160303220845

Actually, because of how rammus's W works, where it reflects damage on every auto attack that hits him by a base amount + 10% of his bonus armor, it's basically double as effective against a Kog'maw than any other adc. The base damage is the biggest reason for that, because it completely disregards the damage kog is doing per auto, unlike thornmail, which does more damage based on the damage you would've taken.

Armor stacking or not, Rammus w would theoretically destroy Kog'maw. The fact Rammus also gets magic resist from it would also help too.