It is actually Scald.
When Black and White came out in Japan, they also had "English versions" for people that speak English. Keep in mind that this was in 2010. Certain moves and abilities had different names, like Boil Over(Scald), Acrobat(Acrobatics), and Mischevious Heart(Prankster). Then Nintendo change the moves names to their current ones respectively. Then a little after Black and White was released to the rest of the world the moves were as they are now.
Hope I helped!