The Ring of Power 'Nenya' (+8,+8)
+2 strength, intelligence, wisdom, dexterity, constitution, charisma, speed. Provides immunity to cold. Provides resistance to cold, blindness. Cannot be harmed by acid, electricity, fire, cold. Sustains intelligence, wisdom, constitution. Feather Falling. Speeds regeneration. Prevents paralysis. Sustains your life force. Grants telepathy. Grants the ability to see invisible things.
When activated, it restores your experience to full. Takes 202 to 300 turns to recharge.
Min Level 80, Max Level 127, Generation chance 2, 0.2 lbs

(Angband 3.1.2v2)