Hero Realms: Wizard Pack - Rules of Play says:
Play Hero Realms as a mystical Wizard. With your feline familiar by your side, summon forth scorching flames from your enchanted staff, and lay waste to your enemies! This Character Pack replaces a player's personal deck in the Hero Realms Deckbuilding Game. Included are 15 cards: a Wizard character card, the Channel and Fireball ability cards, two unique scorecards, and a new 10-card personal deck (Cat Familiar, Fire Staff, Spell Components, 2 Ignite, and 5 Gold).