Hearthstone: Reign of the Black Empire

Hearthstone is a free-to-play digital collectible card game set in the Warcraft universe. Originally subtitled Heroes of Warcraft, the game features turn-based one-on-one matches where players build 30-card decks and select heroes from eleven classes, each with unique abilities. Players spend mana crystals each turn to summon minions, cast spells, and use weapons with the goal of reducing their opponent's health to zero. The game includes multiple modes such as ranked competitive play, Arena drafting, Battlegrounds (an auto battler for eight players), and rotating Tavern Brawl challenges. New card sets are released as expansions every four months, with a Standard format that rotates older cards out of competitive play.

Hearthstone: Titans is the 24th major expansion to Hearthstone, introducing powerful Titans, Legendary Keepers and upgradeable Forge cards. "Titans" introduces 145 new cards to Hearthstone, with the titular Titans being the most important ones.

Forged in the Barrens will launch worldwide with 135 new collectible cards! Set in the dusty savannah territory of the Barrens, a literal crossroads where tauren, troll, and orc adventurers gather to prove their worth. Mercenaries of old and newcomers alike train for an upcoming conflict with the Alliance. This set introduced the new keyword, Frenzy, which causes a minion to do something the first time it takes damage as long as it survived the attack. Additionally, it added seven Spell schools to the game; Arcane, Fel, Fire, Frost, Holy, Nature, and Shadow. This applies to new spells but also old ones, opening up many new synergies.

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.