Double or nothing

You have learned how to make an attack with great risk for a huge reward if it hits properly. you gain the following benefits when taking this feat:

- Whenever you roll a critical hit on an attack roll you may choose to activate Double or Nothing. in doing so you make another attack roll against the creature. Advantage and disadvantage do not affect this roll. On a hit, the damage dice used are tripled rather than doubled, in addition the creature has disadvantage on attack rolls until the beginning of your next turn. On a critical hit, the damage dice are quadrupled instead. This ability can not be used more than once on one attack. On a miss, the attack does damage as if there was no critical hit, and attacks from the target creature have advantage on you until the end of their next turn. You can use this ability a number of times equal to your proficiency bonus, recharging on a long rest.

- You have advantage on Wisdom (perception) and Intelligence (investigation) to learn a creature's weaknesses.