Is Bleach episode 70 filler?
Filler Yes, episode 70 of Bleach is filler.
#70
Rukia's Return! Revival of the Substitute Team!
ルキアの帰還！代行チーム復活
Aired 21 Feb 2006
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.