River Styxx was trademarked on January 22, 2014 and her first doll came out in Mid November, 2014. As of January 01, 2015, her doll number totals 1 and makes up 0.29% of the entire Monster High doll collection. Other merchandise of her is not yet available.
Graph IRI | Count |
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http://dbkwik.webdatacommons.org | 13 |