Stalwart Blade

The Stalwart Blade (ストレングスブレード) is a Heartless Boss from Kingdom Hearts 358/2 Days. It is merely a palette swap of the Dualblade.

Kingdom Hearts 358/2 Days
This magic-resistant knight Heartless's skillful defense makes it tough to finish off. Though its focused slash can be stopped with a block, blasting the knight with Aeroga while it is storing up energy will stagger it, opening it up to extra damage, especially from magic.