Phoebe throws a house warming party. Paige tries to explain the rules of magic to Henry. Piper and Billie find a magical garden where the servant of the Chinese Zodiacs, Lo Pan, gives Buddha's staff of to Piper to keep until midnight after one of the Zodiacs dies by the hand of a demon who is after the staff. Piper accidentally infects Paige with her one-track mind using the staff. Lo Pan helps Billie master her projection power and use it to finally find her sister.
- Nonindicative Name: Despite there being twelve Chinese Zodiac signs, and the title mentioning twelve angry Zen, only six of them are even seen in this episode.