Talk:Karthus/Strategy/@comment-77.236.25.91-20120325144917/@comment-131.156.211.13-20120417135057

All of Karthus' damage spells are AoE, so Rylai's isn't optimal on Karthus.

RoA is much better because of this; it increases his mana too, which Karthus can never have enough of.