is bleach episode 289 filler?

Byakuya and Kenpachi land a devastating blow on Yammy and the two of them continue their battle against each other. However, before they can do anything Yammy gets back up and yells that he will not forgive them.

He suddenly begins to grow further in size, greatly altering his appearance. Yammy tells them that the reason his Resurrección is called Ira is because anger itself is his power, and that he wants Byakuya and Kenpachi to make him even angrier so he can make their deaths all the messier.