Red Cards are part of the Law System in Final Fantasy Tactics Advance. Any violation of a Law that results in a fatality or any second offense during a single battle will result in a Red Card. Any unit given a Red Card will be sent to prison immediately, removing them from the battle. If Marche ever gets a Red Card, it is an instant Game Over.
Units wearing Hero Medals are immune to receiving Red Cards, and will instead receive a subsequent Yellow Card. However, even units that are wearing Hero Medals are not completely immune to Red Cards, as Llednar Twem learned the hard way by attempting to use Omega on Marche despite an Advanced Law activated by Judgemaster Cid to prevent him from doing so.
red card is shown in many sports after a rules infraction.A