Truth Potion

For 10 minutes after drinking this astringent potion, you can't intentionally lie and may be compelled to tell the truth. Upon drinking the potion, attempt a DC 19 Will save. You can voluntarily fail or critically fail. Success The potion does not affect you. Failure When you speak, you must tell the truth. Critical Failure As failure, and when someone asks you a question, you must attempt another DC 19 Will saving throw. If you fail this saving throw, you must answer the question truthfully if you are able to do so; if you succeed, you are temporarily immune to further attempts to ask the same question within the potion's duration.