Ring of Stunning Fist - 2011 (Gold) - C37
Note: This is a Consignment Token (hence the C37), which means a True Dungeon adventurer is selling it through Trent Tokens. But as with all Trent Tokens products, once you've made your purchase, you'll receive a tracking number and your token will be promptly mailed to you!
Erratum: As of 2016, allows stunning fist or dazing fist to trigger on a natural 19-20.
Note: This ring does not make all of the wearer's attacks crit on a 19-20. It allows the Stun/Daze effect to trigger on a 19-20, which may or may not be a critical hit.
Text On Token: Allows re-slide of Stunning Fist if first attack misses