Spirit of the Trickster

At one point you were possessed by the spirit of a Nilbog, and though it has since passed on to another host, it has left its mark on you. You gain the following benefits:

• Increase your Charisma score by 1, to a maximum of 20.
• You have learned the best ways to manipulate others of your kind. You have advantage on Charisma checks with other goblinoids and you learn the vicious mockery cantrip. Charisma is your spellcasting ability for this spell.
• When you take damage, you may use your reaction to roll a hit dice and reduce the damage taken by the amount rolled + your Constitution modifier. If this reduces the damage taken to zero, you gain a number of temporary hit points equal to your Constitution modifier. You can use this feature a number of times equal to your proficiency modifier, and regain all uses whenever you finish a long rest.