The Sigil of Krasus was a great boon to the Alliance during their battle against the orcs while on the Alliance Expedition. It was held by Archmage Vargoth, but was taken from him when he was imprisoned in the Violet Tower by Kael'Thas Sunstrider. The sigil was given to Spellbinder Maryana, a lieutenant of Kael'Thas based at Manaforge Coruu.