Here is a list of link to all the HERO CARDS in the game with detailed explanations of their Classes, STATS, and ABILITES.
SLAYER HEROES
EXECUTIONER
GHOST BLADE
NIGHTBOW
REVENGER
GUARDIAN HEROES
CHAMPION
HALF TROLL
STONEBREAKER
WARDEN
SUPPORT HEROES
CHRONOMANCER
SCION
SERAPHINE
STRANGE HEROES
DEADSPEAKER
FALLEN ANGEL
PURIFIER