is bleach episode 167 filler?

Having slashed Grimmjow Jaegerjaquez down his torso with only part of his Hollow mask remaining, Ichigo Kurosaki mentally asserts that it is over, but Grimmjow grabs the sword of his Bankai, Tensa Zangetsu, by the blade and declares that it is not over before berating Ichigo for thinking that this would be enough to win and attacking once more while Orihime Inoue and Nel Tu watch in shock from the tower above them.