Frost: (singl dmg): (https://wow-forsaken.5forum.info/t895-wotlk-frost-pve-death-knight)
Blood: (tank): (https://wow-forsaken.5forum.info/t812-wotlk-blood-death-knight-tank)
Unholy: (aoe dmg): (https://wow-forsaken.5forum.info/t863-wotlk-unholy-dk-pve-dps)