Wario Partners, LLP

Wario Partners, LLP, previously known as the Wario Bros., is a team in the King for a Day Tournament and King for Another Day Tournament, consisting of the Mario characters Wario and Waluigi. Wario was selected by the rippers, while Waluigi was selected as a popular fan submission, being #2 in the ballot overall. They were combined into one character.

King for a Day Tournament
The Wario Bros. were the twelfth competitors revealed on July 22, 2018. Their source list included rips from Wario games as well as Mario sports games. They defeated Geno in Match 8 of Round 1, but lost to Off the Hook ft. Glenna in Match 4 of Round 2.

Quotes
Lines without a link come from the "All Victory Fanfares and VS Lines!" video.

King for Another Day Tournament
"Wario’s successful game development company has set the business world on fire, and a strategic partnership with a certain street food business has created the corporate merger of the century: Wario Partners, LLP! They’re wasting no time diversifying — now in addition to making games, they’re kicking ass and taking names. And thus, their first order of business: win that tournament and get all that sweet free advertising! Wahaha!"

- Wario Partners, LLP's description on the MOJO!! The Wario Bros. return in the King for Another Day Tournament, now named the Wario Partners, LLP. Wario now sports his design from the WarioWare series and Waluigi has been given an original design based on Wario's WarioWare outfit. Their source list has been expanded to include songs from the Super Mario Land series and all non-RPG Mario spin-offs.

In Round 1, they went up against Johnny Bravo and won before losing to "Weird Al" Yankovic in Round 2. In Round 2 of the Loser's Bracket, they faced off against Metal Ajit Pai and won, but lost to Mariya Takeuchi in Round 3 of Loser's.

Quotes
Lines without a link come from the "All Vs/Victory Lines" video.

Trivia

 * Wario is one of four characters to be both a playable character in the Super Smash Bros. series and a competitor in the King for Another Day Tournament, the others being Donkey Kong, King Dedede, and Solid Snake.
 * Additionally, Wario is the only instance of such a character being part of a team.
 * Wario is also the only character to compete in the King for Another Day tournament using a design identical to that of their appearance in Super Smash Bros. Ultimate (a trait formerly shared with King Dedede and Solid Snake in the King for a Day Tournament). Despite this, Wario gets a unique icon different from that of his Smash Ultimate stock icon.
 * Wario Partners, LLP are the only veterans to place in the top half of both tournaments.
 * Additionally, they are the 3rd highest placing veterans of King for Another Day, despite getting 16th. The only veterans to place higher were Weird Al and DJ Professor K who both placed in the bottom half of the first tournament.
 * They are, along with Off the Hook ft. Paruko, the only contestants to never receive any dual arrangements (barring "POLKA FOR ANOTHER DAY").

King for a Day

 * Their vs. quote against Pitbull references the Dance Dance Revolution: Mario Mix song "Destruction Dance".
 * Their vs. quote against Dancing Alien Team references the character Orbulon from the WarioWare series.

King for Another Day

 * Their vs. quote against Geno references their victory quote against him in the previous King for a Day Tournament
 * Their vs. quote against Off the Hook ft. Paruko references both of the latter's loss from the previous King for a Day Tournament.
 * Their victory quote against Off the Hook ft. Paruko references the game .
 * Their victory quote against "Weird Al" Yankovic as well as their quotes against HOBaRT and vs. quote against Eminem reference the fake game .
 * Their quotes against Men in Black references the character Orbulon from the WarioWare series.
 * Their victory quote against ZUN references the moon rabits from the Touhou Project series, as well as the perfect ending to  where Wario gets ownership of the moon.
 * Their vs. quote against King Dedede references the  sub-game The Great Cave Offensive.
 * Their victory quote against King Dedede references the game  and his Wario Deluxe form from WarioWare Gold.
 * Their vs. quote against Solid Snake references the Metal Gear Solid 3 pachislot.
 * Their victory quote against Solid Snake uses Fatman's most popular quote, "Laugh and grow fat!" from .
 * Their victory quote against DJ Professor K is a play on title of the  song "Teknopathetic".
 * Their victory quote against Adam Levine references the game .
 * Their victory quote against Mr. Krabs references the "Crab Rave" meme, specifically the "Obama is gone!" parody.
 * Their vs. quote against Mariya Takeuchi references a line said by Wario in this in-character press conference meant to advertise Wario World.
 * Their victory quote against Mariya Takeuchi references the character Mona and her song "Mona Pizza" from .
 * Their vs. quote against Dr. Robotnik references the Super Mario Land 2 commercial, used as a meme and YTP source which has spawned several parodies such as the popular "Obey Weegee, Destroy Mario" meme.
 * Their quotes against Jack & Elmo reference their victory against Geno in the previous tournament, drawing the parallel that both Elmo and Geno are puppets.
 * Their victory quote against Dr. Piccolo references the Daily Dose meme.
 * Their victory quote against Jack Bros. is a reference to one of Wario's eight transformations, Thief Wario, also known as Purple Wind, from the game '. A reference to the Phantom Thieves of Hearts from ' is also made here.
 * Their vs. quote against the Rhythm Masters references Waluigi's role in Dance Dance Revolution: Mario Mix.
 * Their vs. quote against The Jazz Cats references , specifically how Princess Shokora was turned into a cat, and only turns back at the end of the game.