Giant, Stage 3 (Titanic Wrath)

Titanic Wrath. When you hit a creature or object with a melee weapon attack, you can channel the wrath of the titans to wreak havoc on your foes. When you do, that attack, and all melee weapon attacks you make until the start of your next turn, deal an additional 1d12 damage. You can use this boon 3 time, regaining all expended uses upon completing a long rest.

Flaw.
Boot Quaker. No matter what your intentions truly are, you can’t help but provoke feelings of fear in smaller creatures. You have disadvantage on Charisma ability checks made against creatures smaller than you, unless you are attempting to intimidate or frighten.