Arcane Contract

You write on parchment, paper, or some other suitable writing material and imbue it with a potent arcane energy.

With this spell, you bind two creatures together in a contract of your choosing. Both creatures must be able to understand the language the contract is written in and willingly sign the contract; if one or both of the participants are charmed or otherwise under a magical impetus to sign the contract, the spell fails.

Both creatures must follow the contract to the best of their ability. The contract might compel one to accompany the other on an adventure in return for a reward, facilitate the trade of a magic item, or keep the peace between two kingdoms. The creatures obey the letter of the contract, but if the creatures are hostile to each other, they strive to twist its words to achieve their own objectives. 

When a creature commits a breach of contract, it takes 5d10 psychic damage, and this damage cannot be reduced or avoided in any way. If a creature dies in this way, the other creature is released from the contract immediately.

The contract ends immediately if the material upon which it is was written is ever destroyed. 

At Higher Levels. When you cast this spell using a spell slot of a higher level, the damage taken increases by 1d10 per spell slot up to level 8. When you cast this spell at level 9, the creatures find it impossible to violate their contract at all. If the material the contract was written on is destroyed, it magically reforms near the contractor furthest from where it was destroyed. Only a Wish spell can nullify a contract of this level.