Midas Touch

You have the innate ability to turn anything you touch into gold. 

When you make a melee attack roll against another creature, you can force them to make a Constitution saving throw. The DC is equal to the damage the attack dealt. On a failure, the target is turned into gold and is petrified for 1 hour.

Additionally, you can turn 1 cubic foot of any material into pure gold.

 You can use both of these features a number of times equal to your proficiency bonus once per long rest.