Providence
Providence was the capital city on Riftmoor that was the historical seat of the First Kingdom and later became the throne of the interstellar Warden Empire locked in battle with The Alliance.
Above the rebuilt throne room is the Rift Scar that glowed at night and had been locked above the capital since the 1st Age. The energy that flows through it enhances all rift abilities and its light is what transforms diamonds into Rift Crystals used in enchanting.