User blog comment:TsurugiFan16/Nomination Game/@comment-4902411-20130412104156/@comment-4902411-20130413083104

STAB means, Same Type Attack Bonus, which means that if a user has a hissatsu with the same element as him/her, the power of the hissatsu will significantly increase.

@Espio : btw, STAB work on every hissatsu..