Awaken Monster

After spending the casting time tracing magical pathways within a precious gemstone, you touch a Huge or smaller monster. The target must have either no Intelligence score or an Intelligence of 3 or less. The target gains an Intelligence of 10. The target also gains the ability to speak one language you know.

The awakened monster is charmed by you for 60 days or until you or your companions do anything harmful to it. When the charmed condition ends, the awakened creature chooses whether to remain friendly to you, based on how you treated it while it was charmed.