Phex Brothers from Jo Jos Bizarre Adventure Jo Jolion. For example, if Kaito uses an effect to change a monster's name to the name of his ace monster, that monster will take the form of his ace monster. In the anime, when cards change names, they take the form of the card whose name they have theirs changed to. He also runs at least two copies of his ace monster. He has several cards that can turn the names of his own monsters or his opponent's monster into another card that is already on the field and he uses Spell and Trap Cards that either support cards with the same name or opposes monsters with the same name.

Kaito uses a Cipher deck, which focuses on controlling multiple monsters with the same names.

They also use the same archetype to support each other.

The Tyler Sisters duel in a team when they are facing two opponents.

In fact, Luca has only one on-screen duel where she duels alone.

Lua and Luca from Yu-Gi-Oh! 5Ds often duel together.They use decks that support each other and they only duel together. The video game adaptation even treated them as a singular character who swap out for different moves. The Liese twins from Magical Girl Lyrical Nanoha A's.However, later in Dragon Ball Super, the main timeline versions of the twins finally team up as a tag-team because of the battle royale format of the Tournament of Power. They avert this trope in the main timeline, where they consider this trope in one-on-one battles as unfair. Dragon Ball: #17 and #18 play this trope straight in Future Trunks's and Cell's timelines.This is ironically often their downfall, as their crazy combination moves often stress and damage their bodies, thus they end up injured a lot. The Tachibana twins from Captain Tsubasa.Eventually, Raul Took a Level in Badass, so that he wouldn't end up as The Load. Mostly Raul Julia herself is quite competent in single matches. Unlike King and Queen, F-Sangre struggle in normal, single matches. G-Revolution: F-Sangre only consists of the siblings Julia and Raul, who excel in double matches and show their Superior Twin Teamwork over other teams.

V-Force: King and Queen are a pair of siblings who preferably like to gang up on their opponents and sabotage them by actively destroying their Beyblades and steal parts from them.

Tag team