Wondrous Item, rare
Inside this silk cloth bag are 1d6 coins of Tymora. The bag weighs 1/3 pound for each coin it contains.
Whenever you are about to do a ability check, attack roll or saving throw you can instead pick up a coin of Tymora out of the bag of lucky coins. You flip the coin and if it shows up as tails (black antlers of Beshaba) the result is equal to a 1 on a D20 and the coin slips out of the users hand and vanishes, but if it comes up heads (Tymora) you get a natural 20 on a D20 as a result and also get to keep the coin.
When all the coins in the bag have been used the back burns up and what remains are a small pile of ash.
Notes: Utility