Assist
From LSWiki
Command: Assist
General-Use Command Usage: assist <what>[!] Assist another character or group of characters with whatever they are doing. Currently, the only form of assistance you can render is in combat, by attacking whoever is currently attacking those you are assisting. As a safety measure, you will not attack characters who you consider a friend, who consider you a friend, who any of your friends consider to be friends or who consider any of your friends to be friends unless you specify the command as an override by putting a ! on the end. Examples: assist warrior assist friends
Development Information: The assist command was created by Chaos and Elronuan; the source code was last updated Fri Oct 27 18:38:40 2017.
See Also: override, attack