Finger Chomper Adept

You have developed such an addiction for human or humanoid fingers that you can bite them off a living creature. When you are in melee range against a creature that is not greater than one size more than yours (At medium size you can bite off a large or smaller creatures fingers) and has fingers you can take a bonus action to make a roll to hit with your bite. On a hit, roll  1D6 -1 that is the amount of fingers you bite off.You gain 2 temporary hp per finger bitten off. This Increases to 3 hp at level 3, 4 at level 5, 5 at level 8, 6 at level 10, 7 at level 12, 8 at level 15, 9 at level 17 and 10 at level 20. A creature that has more than half of its fingers bitten off has disadvantage on attack rolls with two handed weapons or the usage of the two handed property on weapons (such as a quarterstaff) until they regain their lost fingers. A creature with all fingers bitten off on both hands cannot use two handed weapons, nor can they use the two handed function of other weapons. They suffer a -2 penalty to ability checks or saving throws requiring the usage of their hands until they regain their lost fingers. When all the fingers on both a creatures hands have been bitten off, the creature must attack with a -7 penalty and disadvantage on all attack rolls with a weapon. Likewise, a spell caster cannot cast a spell that requires the use of pointing a finger at a creature to initiate the effect. Any creature suffering from this condition also suffers a -4 penalty and disadvantage on all ability checks and saving throws requiring the use of their hands until they regain their fingers. The only way to regain your fingers is by a Greater Restoration spell or a similar effect that allows you to regain lost body parts. You can use this feature your proficiency bonus times per long rest. In effect to taking this feat you must take the addiction flaw.