Trio Attack
Trio Attacks are special methods of attacking which require Mario, Luigi and Paper Mario to work together. They debut in Mario & Luigi: Paper Jam.
In Mario & Luigi: Paper Jam, Mario, Luigi and Paper Mario learn five Trio Attacks through their adventure. Trio Attacks use up Paper Mario's Special Points. Each one uses between 6 and 15 points and can be replenished with Syrups. Trio Attacks can only be initiated by Paper Mario.
Trio Attacks are brought to the Bros. by Toads as a special delivery from Princess Peach's Castle after certain points in the story have been passed.
They turn enemies into pieces of paper and destroy them in a setting inspired by the Paper Mario series, with the majority of them targeting all enemies at once (the sole exception being Trio Kite, which only targets one emeny), like the Luiginary Attacks in Mario & Luigi: Dream Team. Trio Attacks are also affected by any status effects that Paper Mario may have at that point, with certain ones limiting the amount of copies that can be in play at any one time.