List of best Item Set for Karthus

On any map, sorted by date, page 213

Howling Abyss

LeBlanc

Kayle

Jax

Karthus

Kassadin

Irelia

Janna

Gangplank

Karma

Katarina

Jarvan IV

Lee Sin

Heimerdinger

Gragas

Kennen

Garen

Kog'Maw

Graves

Hecarim

Kha'Zix

Jayce

Kayn

Gnar

Jhin

Kindred

Jinx

Illaoi

Ivern

Kalista

Any

Any

Any

Any

Any

Any

Summoner's Rift

Any

Any

Any

Any

Any

Any

Any

Any

Karthus

Any

Any