In the Year of the Ageless One, Terov approached Mhurren of the Bloody Skulls orc tribe, offering the warchief his own kingdom of Thar in exchange for an oath of fealty and an agreement not to endanger cities under Kardhel's protection. Wanting to have a protected trade route from Vaasa to the Moonsea, he provided the chieftain with arms and armaments and the loyalty of several other Tharran tribes, which Mhurren then used to march on Glister and then Hulburg, where the army was defeated.
Kardhel is a tall human with pale skin, hair of iron gray, and a normally clean-shaven face. As a result of his forming the pact with Telos that all Warlock Knights take, his eyes are a deep, bloody crimson. When he may be going into danger, Kardhel wears ebon plate mail with a black helm fitted with gilded ram's horns curling from the sides.
Among Terov's possessions is a heavy iron band carved with dire runes, which encircles his ring finger. This is his pact ring, given to him when he completed the Pact of the Iron Ring, and is not removable.