Heroes 5.5 WarGame Edition - Tactical Edition.

See the skills to the right (in the orange and blue frames). For the Reanimator: 20% Summoning + 10% Darkness For the Cultist: 20% Darkness + 10% Summoning The three skills on the left in the column are common to all classes of the race. That is, all Harvesters/Reanimators/Cultists have good access to Sorcery, Darkness, and Summoning.