Call for Backup
From the Super Mario Wiki
Call for Backup is the tenth captain command in the Minion Quest: The Search for Bowser mode of Mario & Luigi: Superstar Saga + Bowser's Minions. It costs four CP to use. When used, the captain will call upon a reserve member of their squad to back them up. Captain Shy Guy, Sergeant Guy, Magikoopas, and Ludwig von Koopa (second battle) are the only ones that can use it.