Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
The latest mode to do this is the 2v2v2v2 Arena, which is coming to the game as part of this summer’s Soul Fighter event.
Source: https://www.digitaltrends.com/gaming/league-of-legends-arena-mode-preview-interview/