Grey Caprice

The Grey Caprice is an Emblem Heartless that is found in Kingdom Hearts 358/2 Days.

Strategy
It attacks by firing a ball of space at the player. When the player is hit by the ball, the player and Grey Caprice switch places and small damage is dealt. They are quite easy to defeat as they have small amounts of health and only one attack.

Etymology
A caprice is another word for "capriccio" which is a lively piece composed freely and without adhering to the rules for any specific musical form.