Karthus

Phantom ⬥ Sorcerer ⬥ Champion

Updated for patch 9.16B

Items

Recommended

Seraph's Embrace
Morellonomicon
Rabadon's Deathcap
Data is based on Scarra's video. Suggestions? Comment below or on this google sheet.

Requiem

Active ability

Channel for 3 seconds to deal 350 / 600 / 850 magic damage to 5 / 7 / 9 random enemies.

Sorcerer

class synergies

Innate: Sorcerers' basic attacks grant twice as much mana. Synergy: Sorcerers grant ability power to their team.

Phantom

origin synergies

While 2 Phantoms are in play, a random enemy will begin combat with 100 health. Works against epic monsters, but deals less damage.