Scaredy cat. AAAHHH is frightened of all creatures that it can see. 

Adrenaline . when AAAHHH is backed into a place  where it cant escape it stops being frightened until the creature moves away also the AAAHHHs strength and dexterity become 20 until it is frightened again

Bold. if the AAAHHH successfully kills a creature it becomes immune to the frightened condition 

Multi attack: the AAAHHH makes 3 melee attacks

Scream(3/day). AAAHHH screams really loudly all creatures that can hear the AAAHHH take 66 (3d20+6d10) thunder damage and are deafened for 1 minute. this attack doesn't work if the AAAHHH isn't frightened

Supreme adrenaline(recharge 4-5-6). AAAHHH  gains advantage on all strength and dexterity saving throws and ability checks for 1minute. it also gains a +3 bonus to attack for 1 minute and it isn't frightened for 1 minute.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., 1 target. Hit: 9 (2d6 + 2) piercing damage. 

Viscous bite . Melee Weapon Attack: +10 to hit, reach 5 ft.,  target. Hit: 15 (2d12 + 2) piercing damage. and both the AAAHHH and the target gain 1 level of exhaustion 

Scary bite. Melee Weapon Attack: +5 to hit, reach 5 ft., 1 target. Hit:  10 (3d4 + 2) piercing damage and 4 (1d6) psychic damage and the creature is frightened for 1 minute