What mixed hero class of the Haven faction do you like?

Wizard's staff reduces spell costs by 1 mana; wizard's cloak reduces spell costs by 1 mana. In total, spells cost 6 mana less. Fissure initially costs 12 mana. And, as a bonus, there's a crown – I don't remember the exact name – that gives: creatures in the hero's army spend 33% less mana (hat). Nightmares cast Horror 2 times.