Scholomance Academy is Hearthstone's fifteenth expansion, featuring 135 new collectible cards. Set in the magical school of Scholomance, run by headmaster Kel'Thuzad at a time before he became an evil lich, the expansion sees aspiring young champions of every class studying in this prestigious academy. However, beneath the halls of Scholomance in a secret chamber lies an evil cult. Scholomance Academy introduces the new Spellburst keyword, an effect that triggers the first time you cast a spell with the minion on board. It also adds dual-class cards, double majors that can be used by either class and combines themes and mechanics from both.