An Archadian Researcher will be near the area, commenting over such a majestic panorama. He can still be talked to in the middle of the battle with Dheed, in which he will scorn the party for ruining the view.
Though the connection has been lost in translation, Dheed's name is a reference to Vagrant Story, which features a wyvern named D'tok as the first boss.
To find the Dheed the player must have spoken to the "Huntmaster" in Phon Coast and defeated Thalassinon, which will start the Rare Game quest. Dheed is then found just before the entrance to the location of the Esper boss Exodus, in Skyreach Ridge in Mosphoran Highwaste. It has a 40% chance of appearing, so the player must exit and re-enter from Empyrean Seat until it appears.