Coin of Draconic Luck

Before taking an ability check, the holder
can flip a coin. If the coin lands heads up,
they gain a +2 to their roll. If the coin
lands tails up, they lose -2 to their roll.
This can be used 3 times per long rest.
If 3 'tails' are achieved in a row, the coin
breaks, and is worth 1cp.