Abyss Knight

Abyss Knights are a type of Oblivion Knight. When Hell hurls its troops at mortal armies, Abyss Knights lead the vanguard.

In-game
Abyss Knights are found in of Diablo II, specifically at the City of the Damned and River of Flame. They are a cross between the blade-wielding Doom Knights and the spell-casting Oblivion Knights.

They carry a longsword on one hand dealing spectral damage with 40% chance, while having colored light emitting from the other hand. The lights on their hand indicates the type of the magical missile they cast. Though they have both qualities of their specialized variants, they do not excel in any particular areas.

Those having an orange light cast fire missiles, those with a blue light cast cold missiles, while those with a green light cast poison missiles. Abyss Knights with a purple light cast pure magic missiles.

Apart from casting missiles, Abyss Knights can also cast the Necromancer's Bone Armor spell.