The Monkey's Paw

You bend the universe to your will with a simple incantation; but at a steep cost.

To cast this spell, you must lift the paw up into the air and state your wish. Then, the paw's finger curls and the same paw cannot be used again.

The wish is granted within the first 24 hours of the spell being cast. Though, the wish always goes through in a way unsatisfactory to the caster. For example, if the caster wishes for 100,000 gold pieces, they get a letter later on that something unfortunate had happened to a friend or family member and they left the specified amount of GP for them. The drawback will be DM decided based on what the caster wishes for.