Mog Barrier is a spell that appears exclusively in Dragon Quest Tact based on the Barrier spell from the Final Fantasy series. It is one of the Moogle's signature spells, protecting itself and its allies with a magical shield.
Mog Barrier can be learned by Moogle at Level 22 and costs 34 MP to cast. It has a range of up to two squares away from it, can be self-cast, and increases the Physical and Spell Res of all allies in a plus sign-shaped area of effect for three turns.
- Barrier's page on the Final Fantasy Wiki