I will not be speaking on rarity in the sense of how rare something is in this article TPC in this article refers to The Pokemon Company who as of now prints cards in Japanese, Traditional Chinese, Simplified Chinese, Thai, and Indonesian cards
Most cards, even those from the 1990s, arent worth more than a few dollars unless they are top grades or unique misprints
3 Hydrapple ex - 167/142 Rarity: Special Illustration Rare The Special Illustration Rare version of Hydrapple ex is also listed among the most expensive cards from the Stellar Crown expansion, according to TCG Player
So, any time this mismatch exceeds 200 percent of the item's original cost, there's a strong financial incentive for third-party retailers to step in
Dont get greedy
But it should be best known for being an absolute back breaker of a mid-range artifact in constructed formats