The Lion's Paw Trinket is a trinket found in Red Dead Redemption 2. It can be crafted by a Fence after selling him the Lion's Paw.
The Lion's Paw can be obtained from killing and removing the paw of the Lion in the stranger mission "He's British, of Course - IV".
The Lion's Paw Trinket is a helpful buff that increases stamina XP gains by 10%.