They even made a skin called Little Devil Teemo. Who actually finds "diablo" to be offensive but not the other 3? I discovered that it is blocked when I was trying to talk about the game, Diablo 3.
Maybe they dislike blizzard entertainment :)
Diablo can be used in a somewhat vulgar manner in Spanish. It's sorta like saying 'hell' if you drop it somewhere by itself.
Satan is actually blocked too.
Fun fact: Dio is also banned for some reason
Easy.
The first one is a reference to a demonic king of hell. The other 3 are alternative titles for Teemo.
blizzard
Lucifer means Angel of light. The other 2, Satan is blocked, they probably block specific names of evil gods. But Lucifer is still ok... appatently.
The last three are synonyms with 
; can't block champ names ofc.
Diablo is owned by blizzard.
Satan is blocked.
You can't even say "idiot." I was trying to say that I had an idiot Kayn build but it censored it.
The build isn't that idiotic though.
diablo is owned by bliz
Because there are terrifying things out there. Like.
EL POLLO DIABLO
Good question*[slayer-jinx-wink]*
Because DIABLO is a publicity stun of a game.
The chat filter is totaly bugged, it blocks some series of meaningless numbers as well.
satan is i can confirm
Because Spanish is master language.
It might be used as an insult in spanish or italian speaking countries? not sure. Alternatively, it could be that it is muted from a previous Riot rule of censorship on religious matters that has since changed, but the filter wasn't updated
Satan is blocked by the chat filter I always get bleeped when I refer to teemo's true name.
