It's pretty rare, in that set there was roughly 1 star per 3 boxes, which comes down to about 1 in every 108 packs. SInce there were 3 stars in the set, that's 1 Metagross * per 324 packs. (No thanks, I'm not buying that many packs just for a Metagross*) As for market value, I'd say about $30-$38.