Talk:Karthus/@comment-122.201.18.131-20111231160213/@comment-186.137.66.4-20120127190107

Usually, you get Sorc Boots OR Void Staff. the 40% magic pen is applied AFTER flat magic pen. So if you get runes, and Sorc Boots, Void staff while be quite wasted (even more if you use your wall) I rush tear, let tear grown my mana pool, then hextech revolver (spell vamp), then sorc boots. I start building my rabbadons, then depending if my enemy is AP or AD i go zhonyas or guardian angel, then finish my archangels. At this point, team fights are important, so I get WotA. Guardian angel is excellent on karthus, you will have 2 your passive to finish your enemies off (makes 1 on 1 an scarry idea). Zhonyas active + spell vamp is pure profit. RoA is a good item in general but sometimes i feel the extra HP doesnt help enough, mana i usually dont need because of my archangels and runes, and the AP is good, but a second life with guardian angels usually helps me more. Obviously, if im getting killed, i will rush my defensive items first, and then my rabbadons.