Black Rose is an item set sold by Tel Var merchants in the Imperial City. Tel Var Armorers sell specific pieces of superior quality gear, while Tel Var Greater Armorer Merchants sell epic quality items. Tel Var Lockbox and Tel Var Greater Lockbox merchants sell boxes that contain random items from the specific set. Pieces are Aldmeri Dominion, Daggerfall Covenant, or Ebonheart Pact Style in Heavy Armor.
2 items: Adds 14-1206 Maximum Health
3 items: Adds 12-1096 Maximum Stamina
4 items: Adds 12-1096 Maximum Magicka
5 items: Increases your Weapon and Spell Damage by 1-154. Increases the Magicka and Stamina restored from the Constitution passive ability by 35%.
The set consists of heavy armor and jewelry in all slots, as well as weapons and shields of all types.