Things have a habit of coming in threes, and that goes for groups of characters too. Just ask Nintendo. Sets of starter Pokémon, everything relating to the Triforce, the entire Mother series – all of them fantastic trios! If you need some further proof though, Super Smash Bros. Ultimate has got you covered.
— 大乱闘スマッシュブラザーズ【スマブラ公式】 (@SmashBrosJP) December 16, 2020
The rule for being featured this time is simple. All you have to do is be a group of three characters. Rhythm Heaven’s Chorus Kids? Check. All three Able Sisters? Absolutely. The original Dr. Mario Viruses? Get ‘em outta here, but yes, they fit the theme.
You can see which other groups come together for this gathering of threes when the Trio Spirit Board Event begins on Friday, December 18th.