Elite Trio

The Elite Trio is a group of three enemies that appear in Mario & Luigi: Dream Team, but all three members first appeared in Mario & Luigi: Bowser's Inside Story. It is made up of Private Goomp, Corporal Paraplonk and Sergeant Guy. They are fought in Dreamy Driftwood Shore after being found with Kamek, who is disguised as Princess Peach.

Battle
The Elite Trio has tons of attacks. Sergeant Guy's attacks are: turning Private Goomp's Goomba horde into copies of the Sergeant, launching Banzai Bills from his Sergeant Guy Cannon, and carry a large Bob-omb. Corporal Paraplonk's attack is hitting blocks near Mario and trying to run him over. Private Goomp's attack is sending his Goomba horde to smash into Mario. All three troops must be defeated at once, as they can revive each other with only 1 HP. This is similar to the battle with Bowser Memory ML from Mario and Luigi: Bowser's Inside Story.

Aftermath
After the trio's defeat, Kamek demotes them to to janitors for losing, then teleports them out. Mario and Luigi briefly encounter the Elite Trio again when they are going after Bowser after defeating Antasma for the final time. This time, the three minions decide to roll giant Bob-ombs down the spiraling ramp to prevent the Bros. from getting up to Bowser. During the credits of the game, Private Goomp and Sergeant Guy end up rocking the Koopa Clown Car so much trying to collect coins that it falls into the ocean, prompting Paraplonk (with assistance from Kamek) to rescue them and Bowser.

Battle Ring
The Elite Trio can also be battled in the Battle Ring as the Class 6 boss battle, in the form of Elite Trio X, where they have higher stats than when fought previously. Unlike most X bosses, the Elite Trio does not have an alternate color scheme, but the background is now yellow instead of pink.