Ulamog is one of the three Eldrazi titans, powerful eldritch beings from the space between planes known as the Blind Eternities. These three titans consume the mana of entire planes for sustenance, leaving nothing behind but empty barren husks of what once was a universe. Each titan has lineages of lesser Eldrazi spawn that collectively act as a kind of digestive system for hastening a plane's consumption. The power of the three Eldrazi titans varies significantly depending on whether they are in a bound or unbound state.