Kairos

Level 2 of the Abyss
(0, 0, Abyss:2)
  the cursed +3 great sword "Goudiavo" {flame, +Inv rC- SInv}
    It has been specially enchanted to burn those struck by it, causing extra
    injury to most foes and up to half again as much damage against particularly
    susceptible opponents. Big, fiery blades are also staple armaments of
    hydra-hunters.
    
    It makes you vulnerable to cold.
    It lets you see invisible.
    It lets you turn invisible.
    It has a curse placed upon it.
(8, 4, Abyss:2)
  a +0 leather armour