is one piece episode 435 filler?

Magellan begins to attack Luffy and Bentham. Luffy tries to fight back but Bentham does everything he can to make Luffy run away.

Magellan then informs the two that they have blockaded the staircases to Level 5 and Level 3. The 3 remaining Jailer Beasts and Sadi guard the Level 5 entrance.

Hannyabal and a group of guards guard Level 3's entrance. Magellan then uses his Hydra attack and sends Luffy and Bentham on the run (which Bentham insists on distracting the Warden disguised as Luffy, so the real Luffy could get away).