Curse of Lost Time [Obscure Arcana]

This spell cannot be learned without the possession of a Tome of Obscure Arcana or a Scroll of Curse of Lost Time

You curse the target with rapid aging or erosion. The effect depends on whether the target is an object, a construct, or a living creature. Artifacts, along with objects and constructs made of precious materials (as determined by the DM), are immune.

• Construct The construct must make a Constitution saving throw, takes 4d6 necrotic damage on a failure and for 1 hour attacks against the construct have advantage and it has disadvantage on Strength and Dexterity checks and saving throws, on a a success, the construct takes half of the damage and is unaffected by the other effects of this spell. 
• Living Creature The living creature must make a constitution saving throw. Ageless creatures are immune. On a failed save, for 1 hour the attacks against the creature have advantage and it has disadvantage on Strength and Dexterity checks and saving throws, on a successful save the duration becomes 1 round
• Object If the object is attended, its bearer must make a constitution saving throw. If the bearer fails or the object is unattended, the object immediately takes 4d6 necrotic damage.
  
  At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for every slot above 3rd.