Talk:Karthus/@comment-129.78.32.24-20120411150801/@comment-4743916-20120411183938

Zhonya's Hourglass is a nice addition to Karthus since he already is a magnet for heavy focus since he's a squishy source of damage. If you enter the center of the teamfight, leave defile on, and activate Zhonya's Hourglass, you get quite a bit of free damage. Another one Karthus's tend to get is Will of the Ancients although it doesn't synergize with him that well since all of his spells are AoE and therefore only get 33% of the spellvamp.