Well, it's an AoS map where Illidan's control over Outland is weakening when the fel orcs are united by Magtheridon again and broke free from Illidan's control. the war is between the Burning Crusade (Illidan) and the Burning Legion (Magtheridon).?? The war consisted of Blood Elves, Draenai and Naga who serves Illidan's side and Fel Orcs, demons and Night Elves (Maive's Watchers) who serves Magtheridon's side. Both sides rally heroes to face each other (like Dota). But i don't plan on following the items or the heroes inside.
By the way, i saw the abomination hero but i was impressed with the lore although it was different from what i had in mind, since the original Butcher was in Black Citadel who was killed by Illidan's forces.