Drain

When you cast this spell, roll 1d8 and use the following effect:

1-2 - The creature you cast this spell on gains one level of exhaustion until their next long rest

3-4 - The creature you cast this spell on gets all magical abilities drained into a small glass vial (material component), which then becomes a potion and the magical abilities can only be regained when drank

5-6 - The creature you cast this spell on has disadvantage on an ability score (including skills and saving throws) of your choosing until their next long rest

7-8 - The creature you cast this spell on must make a INT saving throw (DC 12). On a fail, the creature takes 5d8 necrotic damage and is stunned for 1 minute. On a success, creature takes half the damage and remains active