Vashna swore vengeance on Sommerlund for the indignity of defeat. He initiated the Helghast Wars in retaliation against Sommerlund. In the last battle of the Helghast Wars, Ulnar I and his armies drove the Darklord army to the brink of the Maakengorge. There, Ulnar I cursed Vashna with the Sommerswerd and dispersed Vashna's atoms to the ends of Aon. It is said that Vashna can be raised again by using his appropriately named dagger, the Dagger of Vashna.
He sought out Zagarna and his Nadziranim. In exchange for their magic, he told them about the Feast of Fehmarn. Armed with this knowledge, Zagarna razed Toran, massacred the Kai, and besieged all of Sommerlund.