Barrier Master

The Barrier Master is an Emblem Heartless that is found in Kingdom Hearts 358/2 Days.

Design
A Barrier Master is a rather small Heartless that wears long robes that cover its feet. These robes are predominantly indigo and navy blue, with a light green collar and a number of white designs decorating them. It also wears a tall, cylindrical, indigo and white hat and what seem to be light green gloves. The only part of the Heartless no covered by clothing is its face, which is spherical, navy blue, and sports yellow, glowing eyes. All Barrier Masters hold a dark blue book that they use as a shield.

The Barrier Master's name clearly references the magical shields it creates, and its skill in doing so.

Strategy
The Barrier Master uses its large book as a shield, similar to the defensive methods used by the large-bodied Heartless. It can only be attacked when separated from the book, which is also used as a weapon with magical powers, the Heartless stunned upon this separation. Due to this Heartless occasionally appearing with another stronger Heartless, the stronger Heartless cannot be hit as the Barrier Master is protecting it with a spell. The only way to remove this spell is to defeat the Barrier Master.