Bestow Curse

You touch a creature, and that creature must succeed on a Wisdom saving throw or become cursed for the duration of the spell.

When you cast this spell, choose the nature of the curse from the following options:

• Choose one ability score. While cursed, the target has disadvantage on ability checks and saving throws made with that ability score.
• While cursed, the target has disadvantage on attack rolls against you.
• While cursed, the target must make a Wisdom saving throw at the start of each of its turns. If it fails, it wastes its action that turn doing nothing.
• While the target is cursed, your attacks and spells deal an extra 1d8 necrotic damage to the target.

A remove curse spell ends this effect. At the GM's option, you may choose an alternative curse effect, but it should be no more powerful than those described.

At Higher Levels

• If you cast this spell using a spell slot of 4th level or higher, the duration is concentration, up to 10min.
• If you use a spell slot of 5th level or higher, the duration is 8h.
• If you use a spell slot of 7th level or higher, the duration is 24h.
• If you use a 9th level spell slot, the spell lasts until it is dispelled.

Using a spell slot of 5th level or higher grants a duration that doesn't require concentration.