Call of Sul'thraze

Call of Sul'thraze is a one-time action that combines the rare one-hand swords and  into the epic two-hand sword.

Warnings
This process consumes both the original swords and is not reversible, and it is possible to create a sword your class cannot use. In particular, rogues and monks cannot use two-handed swords, so combining the two one-hand swords would leave you without a weapon.

Any enchantments on the original swords will be lost.

Casting
In order to cast Call of Sul'thraze, equip and right-click on it. It is not necessary to equip both swords; only needs to be in your inventory.