Talk:Caitlyn/@comment-16257908-20150507182310/@comment-26001789-20150603115132

That buff is only for the midgame portion of the game since the 50% reduction only applies to bonus armor. It's largely null into the early laning phase and only comes online into teamfights. Mainly because itemizing armor is super cheap and Caitlyn gets walled hard by AntiCarry defensive itemization(Randuin/Frozen Heart + Thornmail) and Cinderhulk.