Quick build
Patch 26.16MidKarthus, midlane area mage
Where these numbers come from
They are pulled from the mode's own files for patch 26.16, the one currently live. The source is community-run rather than an official Riot API, and the game shifts with community votes, so a gap with your own game is always possible.
Summoner spells
Skill order
| Ability | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Q | Level 1 | Level 3 | Level 5 | Level 7 | Level 8 | |||||||||||||
| W | Level 4 | Level 14 | Level 15 | Level 17 | Level 18 | |||||||||||||
| E | Level 2 | Level 9 | Level 10 | Level 12 | Level 13 | |||||||||||||
| R | Level 6 | Level 11 | Level 16 |
Rune page
9× Glyph of Scaling Ability Power
9× Mark of Magic Penetration
3× Quintessence of Ability Power
9× Seal of Mana Regeneration
Items
Note
Karthus has two standing problems early: no mana and no body. Rod of Ages answers both at once, and it ripens faster the better you farm with Lay Waste. The mana regeneration seals exist for the same reason, because without them Defile taxes you dry the moment you switch it on twice in a row. After that you stack raw power, Rabadon's Deathcap then Void Staff, because Lay Waste is a cheap spell you cast on loop and every point of ability power gets multiplied by the number of detonations. Zhonya's Hourglass answers the champion's one real danger, the assassin who jumps you before your ultimate is up: you freeze, their combo lands on nothing, and you take the lane back from someone who just spent everything. Rylai's Crystal Scepter replaces Void Staff against a very mobile team, when landing the blast is a bigger problem than punching through resistances. Maîtrises : 21/9/0 into Offense.