General
- is one of only three abilities that allow their casters to continue attacking after death, the others being and .
- Requiem Mass referencing Karthus' singing for/about the dead. was likely named after
- A glass case reading 'Press can be seen in the game's Mac Version launch trailer. to Win'
- Before 2016 Karthus had been disabled for every single Ultra Rapid Fire edition (most likely to prevent 'Spam to Win' abuse cases)
- Karthus' vocals in Smite and Ignite are provided by ZP Theart ('Deathfire Grasp' and 'Last Whisper') and by Jørn Lande (the rest).
- His name combines Germanic *Karilaz "young man", Brythonic Celtic *Arth & Latin Ursus, both meaning "bear".
Quotes
- " is a will turn their to shrouds"double entendre.
- "I am references death"J. Robert Oppenheimer misquoting the Bhagavad Gita.
- "What's the incantation again... yes, erm... oh, right, references 'Press !" to Win'.
- "I'm putting your name in my little black necronomicon" references H. P. Lovecraft and maybe Death Note.
- "Do you have a moment to talk about death?" references Excuse Me Sir, Do You Have a Moment to Talk About Jesus Christ?
- "You can't kill the metal!" references The Metal by Tenacious D.
- "Silence, groundwalker", "What have I done? Created beauty by simply rocking! That's all", and "What is that sound? It's the pounding of creation's hammer on the anvil of time!" all reference Brütal Legend.
- "Towerdiver, gotta get away, get away" references Holy Diver by Dio.
- "Die for metal references Die for Metal by Manowar.
- "Light's out forever references School's Out by Alice Cooper.
- "Death is blacker than the blackest black... times infinity" references Metalocalypse.
- "This is references !"Spinal Tap.
- "I am references !"Lightbringer by Pentakill.
- Both "Everyone will falter when you die!" and "My song, reference them all!"Thornmail by Pentakill.
- In Brazilian localization he references Toca Raul by Zeca Baleiro (named after Raul Seixas)
Skins
- He is the only skin priced at .
- He might be referencing Sauron from The Lord of the Rings.
- He references the Statue of Liberty in New York City.
- An eagle screeches when he dances.
- His staff becomes the scythe the entity he references usually wields.
- The Necronomicon strapped to his waist references H. P. Lovecraft.
- He shares this theme with and .
- He is the fourth non-Legendary skin to have special voice-over lines (the others being , , Error: Skin Mafia for Jinx is not specified in Module:SkinData/data., and )
- He was inspired by Eddie the Head from Iron Maiden.
- He shares this theme with , , , and .
- He celebrates Fnatic winning the Season One World Championship.
- He represents xPeke.
- He shares this theme with , , , and .
- He references a traditional tabletop role-playing game.
- He uses what appears to be the .
- This is the first skin in which Karthus is a human.
- His ability visuals and sound effects are reminiscent of the Pre-Visual Update Karthus.
- He shares this theme with , , , , , , , and .
- , , and can be seen in the background, trying to stop him.
Relations
- In life Karthus was a tally-man of and, to this day, he wears the vestments and carries the staff, which he still etches every time he 'releases' a mortal soul from life.
- Unlike most Shadow Isles champions, who have a direct relation to and/or the Ruination that destroyed the Isles, Karthus is one of two champions with no connection to the Isles' origin (the other being )
- Pentakill so they would and the whole of Runeterra with their music.[1] embarked on a metal-fueled journey to recruit Karthus, , , and in order to form