Tzara

Tzara is a Crowla, currently living in the Royal Twins' garden. One of many of her kind to have been corrupted during the initial spread of Sour candy, she wandered around Pinata Island for several weeks, filled with a nonspecific sort of rage leading her to attack other pinatas- seemingly at random at first, but she soon found herself picking on sick pinatas, those who couldn't fight back.

She finally found a home in the Royal Twins' garden when they set out to purify her...or at least, they attempted to purify her. Her transformation from sour to sweet was interrupted when her cocoon was destroyed in the middle of a fight between Cher and Princess, leaving her stuck in a strange midpoint- the Sour corruption still flows within her, but she's in-control enough to remain generally friendly. ...Mostly. She occasionally lapses back into Sourness- lucky for her, the other pinatas are there to hold her back until she regains control.