Awakened Cape of Nix

A jade green cape with bronze trimming. Upon attuning to it and equipping it, the cape changes color to match the current color scheme of the wearer. The cape grants a +3 to any spell-related saving throw the user makes. The cape also grants the following features:

Arcane Parry. When you succeed on a saving throw against an enemy's spell, you may cast any Level 1 Evocation spell from the Wizard spell list at the enemy.

Thaumaturgical Precision. When landing a critical hit on a ranged/melee spell attack, you regain the spell slot that was consumed in casting the spell. 

Alchemical Countermeasures. After each Long Rest, you may pick one damage type to have Resistance against for the next 24 hours or until the next Long Rest.

Untether. Once a day, you may cast Fly without requiring concentration. 

Notes: Intelligence check (DC 16). On a success, you attune to the cape. On a failure, one of your highest level spell slots are expended.