Rave Master Episode 36: On the Other Side of the Sad Sky...
Episode 36 of 51 of Rave Master, aired June 15, 2002, 25 minutes. Available with English subtitles and dub where released.
Episode summary
After Plue acquires new power and Haru destroys the vicious sword Decalogus, King uses a forbidden power to attack Haru and Gale.