Black Powder Tinkerer

You've begun to tinker with the dangerous and unpredictable substance of black powder. 

• Increase your Intelligence score by 1, to a maximum of 20.
• You may create a black powder mixture using the required materials and succeeding on a DC 8 Intelligence check and on a successful check, an amount of black powder is created (up to DM discretion on the amount) in a previously specified container. On a fail the materials used to create the mixture are ruined and of no further use, and furthermore on a roll of a natural 1 the mixture explodes causing 2d10 damage to anyone within 5 feet. 
• You have advantage on attack rolls throwing bombs using black powder.