The Ash Warlord Embereck was a red mana planeswalker native to Dominaria, specifically from Hammerheim. He fought Ravidel over the resurfaced Golgothian Sylex shortly after the Ice Age in the ruins of a city on Terisiare. Some sort of bargain was struck, and Ravidel left in possession of the Sylex. Later he helped created the council of Minorad. He left this council after they decided not to interfere with Ravidel.
According to Jeff Gòmez, editor of the Armada comics, the Ash Warlords emerged from "within Dominaria" through the mountain Oremon.