Absolute skills

not either/or, but both... we need both, and a third...

So, as I understand it, for the Demon, the ultimate ability is Call of Urgash, for the Knight – Unstoppable Force, for the Necromancer – Scream of Terror, for the Ranger – True Luck, for the Mage – Omniscience, and for the Warlock – Elemental Fury. Is that correct?