Borrowed Knowledge

2nd-Level Divination

Casting Time: 1 action
Range: Self (30-foot radius)
Components: V, S
Duration: Concentration, up to 10 minutes

You temporarily steal the knowledge from another creature within range. Choose one creature you can see within range and one skill. The chosen creature must make a saving throw based on the ability score associated with the chosen skill. A willing creature can choose to fail this saving throw. 

On a failed save, the target creature loses its proficiency in the chosen skill (if it has any), and you become proficient in the chosen skill for the spell’s duration. If the target has no proficiency in the chosen skill, the target instead gains a penalty to the chosen skill equal to the spell’s level instead, and you become proficient in the chosen skill for the spell’s duration. You retain this proficiency until the spell ends, even if the target creature is reduced to 0 hit points. 

At Higher Levels: When you cast this spell using a spell slot of 4th or 5th level, you can choose to steal the target’s proficiency in one weapon instead of a skill. When you use a spell slot of 6th level or higher, you can choose to steal the target’s proficiency in one saving throw instead of a skill.

Spell Lists: Bard, Cleric, Warlock, Wizard, Arcane Trickster Rogue