Skarjall is the source of the quest Get Past the Rubble. After trying to coerce the party to help him move some rubble, he will reveal a piece of Adamantine Slag- a sign that an Adamantine Forge is nearby. The party can fight him and Grundril and Morgya or help them to clear the rubble. The two Deep Rothé he is whipping can be convinced to join the fight against him if spoken to with Speak with Animals.
Normal weapon damage + Superiority DieWeapon damage
Spend a superiority die to deal normal weapon damage + 1d8Weapon damage and possibly Frighten the target.
Normal weapon damage + Superiority DieWeapon damage
Spend a superiority die to deal an additional 1d8Physical damage and possibly push the target back 4.5 m / 15 ft.