“I was once leader of all of the titanforged keepers of Azeroth. We were charged by the Titans themselves to protect the world.
Once I gave up on the post of Prime Designate, I gave up any measure of influence over the other keepers. Not even my own son, Thorim, is bound to heed my commands.
The Gjallarhorn comes from a time before our falling out, however. A time of an ancient oath of honor.
Let us invoke that oath -- I am certain Thorim will answer the call.”