Hunter x Hunter (2011) Episode 123: Centipede x and x Memory
Episode 123 of 148 of Hunter x Hunter (2011), aired April 1, 2014, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Ikalgo is attacked by Welfin but the enemy's attempt to restrain him backfires and they find themselves in a stand off. In the occasion, Welfin regains some of his lost memories from when he was still human and gives him a hint regarding Palm's location.