Masochist

You’ve been tempered by your desires and your body has become a willing sacrifice to that end. You gain the following abilities:

• When you take damage, you can use your reaction to increase the damage taken by a number equal to your level. The next melee weapon attack you make gains a bonus to its damage roll equal to half your level if you make that attack before the end of your next turn.
• When you make a melee weapon attack, you can use your reaction to gain a bonus to your attack roll equal to half your level, but you take damage equal to half the damage you dealt. If you miss, you take damage equal to the damage you would’ve dealt. 

Once you use either of these abilities, you can’t use them again until the end of your next turn. The damage you take from this feat cannot be reduced or avoided by any means.