SMASH

Your character unleashes a fierce battle cry and the ground rumbles. AC is reduced by 4, HP is reduced by ¼ from max, and you have disadvantage on Dexterity checks until the start of your next turn. Add 1d8 plus a d4 for every hit die expended to the next attacks damage, and gain advantage on your next attack. Movement ends after making the attack. Damage becomes 2d8 at level 10 and 3d8 at level 17. Regain 2 uses per long rest. Number of uses is proficiency bonus.​