A Barrier (バリア Baria) is an object that players may gain.
If a player has a SIGNI Barrier (シグニバリア Shiguni Baria), when they would be dealt damage by a SIGNI, instead the SIGNI Barrier is consumed and that damage is prevented.
If a player has a LRIG Barrier (ルリグバリア Rurigu Baria), when they would be dealt damage by a LRIG, instead the LRIG Barrier is consumed and that damage is prevented.
Barriers are given by the effects of certain PIECEs.