Bane

From Player's Handbook, page 216.

Description
1st-level enchantment


 * Casting Time: 1 action
 * Range: 30 feet
 * Components: V, S, M (a drop of blood)
 * Duration: Concentration, up to 1 minute

Up to three creatures of your choice that you can see within range must make Charisma saving throws. Whenever a target that fails this saving throw makes an attack roll or a saving throw before the spell ends, the target must roll a d4 and subtract the number rolled from the attack roll or saving throw.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.

Learned By

 * Classes: Bard, Cleric
 * Subclasses: Cleric (Ambition Domain), Cleric (Grave Domain), Paladin (Oath of Vengeance), Sorcerer (Divine Soul), Warlock (The Undead), Wizard (Onomancy), Wizard (Theurgy)
 * Eldritch Invocations: Thief of Five Fates
 * Feats: Fey Touched, Magic Initiate, Strixhaven Initiate