Prerequisites: Hoardshine Goblin
Hoardshine goblins have been known to make terrible binding deals with creatures through enchanted contracts. By using an ink and parchment and spending 1 hour, you can produce a magical document with simple terms and conditions for one good or service in exchange for another, such as 1 week of hard work in exchange for a firstborn son, or the casting of a spell in exchange for their voice. A willing creature that is not compelled by magic may sign the deal and form a contract with you. From that point the deal must be fulfilled. If the deal is broken by either side, a pack of goblins whose number is equal to 2d6 multiplied by your level will descend upon the deal breaker to force the terms of the deal or met out justice as appropriate. The pack of goblins will use whatever means it has to do this task, including getting aid from others. If the goblin pack is defeated, the subject is off the hook. You may only have one contract active at a time.
You can steal away immaterial things through your contract, such as a voice, someone's soul, or a person's lifespan. When they do so the concept materializes as a small jewel worth 2 GP the hoard goblin keeps around. If the jewel is broken, the stolen goods are returned to its owner. Hoard Goblin lairs are filled with countless jewels with countless lost things.