Sir Aah

Sir Aah is the boss of the Distant War quest, and is the leader of the Asgarnians inhabiting the Dalorfa colony prior to the Quest's completion. He is encountered only once, and that is during the fight with him. He is very similar to a player in his fighting style and movements. He uses a Dragon scimitar in melee and attacks using the Earth Wave magic attack.

Strategy
He isn't too difficult to defeat, despite the fact he is assisted by two White Knights and Dalorfa soldiers, if you have an inventory full of food and good equipment. It is suggested to bring melee gear for the fight and use Protect from Magic to negate his magic attack. You can then tank the White Knights and Dalorfa Soldiers before facing Sir Aah one and one. After that, it is relatively easy to defeat Sir Aah if you keep your health high.

Be cautious when fighting him because he hits hard and fast. Be sure to keep your protection prayer up through the fight and eat constantly to avoid being slaughtered by his fast scimitar attacks. It is common strategy to switch to dragonhide and the Protect from Melee prayer when his minions have been defeated because his melee attacks are much faster than his magic.

Triva

 * Sir Aah is a play on word "sirrah".
 * He seems to be wearing a Legend's Cape, meaning he is a member of the Legends' Guild.
 * He also appears to be wearing either Initiate or Proselyte armor, which means he is probably a member of the Temple Knights as well as a White Knight.