Hearthstone: Witchwood is an adventure addition to the board card game in the fantasy universe of Warcraft. The expansion adds 135 completely new cards to the game, and some of them have completely new mechanics: Onslaught and Echo. Onslaught allows a card that was summoned to the battlefield to attack on the same turn, but such an attack cannot be directed against a hero. A card with the Echo property will create a copy of itself in the player's hand each time it is summoned to the battlefield, but these copies will disappear after the turn ends. Of course, it won’t do without a new adventure — “Monster Hunt”. In it you can go through the story of a group of four hunters destroying the monsters of the “Witch Forest”, and for victory you, as usual, will receive unique expansion cards.