IMPORTANT!!! [DISCUSSION] Academy vs. Necropolis

Mages can only have one hero who can effectively develop the Darkness skill, but I don't remember his name, something like Faiz or...? He has Darkness at the start. I also didn't understand why you would take Darkness when Eternal Light exists, plus summoning is fine. Maybe the Phoenix won't save you there, but Heavenly Shield, mines, phantoms, crystals, and sword walls will definitely help. It's harder for a Necromancer to develop two skills at once; it's easier for a mage, so I think Light + Summoning is possible!