Battle Angel
The user can create an energy suit/armor for themselves similar to the armor a Valkyrie wears and they fight using constructs like swords, shields, gauntlets, barriers, etc. The suit increases the user's power, speed, and agility up to 500,000% . They can also levitate with the suit or create wings for flight. The armor is powered up by channeling the energy from the environment to create the constructs. In addition this allows the user to utilize the energy gathered to regenerate themselves and this will in turn give them a younger appearance. However, they will still age albeit slower than average.
Drawbacks: exhaustion, channeling too much energy will tire the user's mind and make them temporarily emotionless becoming apathetic, expressionless, unfeeling, and if overuse is severe enough, they could lose consciousness. The negative emotional effects could last as short as 10 minutes for a few hours depending on the degree of quirk overuse.