Gretta the Arbiter, in Brunnhildar Village, wants you to use the Reins of the Icemaw Matriarch inside the Pit of the Fang and defeat 6 Hyldsmeet Warbears.
To truly stay in your best riding shape you'll want to test yourself against the other Hyldnir every day.
Head back into the Pit of the Fang and show them what you're capable of. They'll appreciate suffering defeat to one as skilled as yourself.
You will receive:
You will also receive: