A '''Scaler''' is a person who uses an electronic scale to determine whether or not a particular pack has a high rarity card in it. They can do this because #REDIRECT [[Super Rare]]s and [[Ultra Rare]]s are slightly heavier than a regular [[Rare]] card or [[Common]], and an electronic scale can pick up those minute differences. Scalers, however, have trouble picking up [[Ultimate Rare]]s, because the weight of the foil technology of that rarity is very, very close to that List of a common. [[Category:Gaming Terms]][[Media:http://yugioh.wikia.com/wiki/unofficial terms#Scaling]]