Size Alteration: The exposure from thje ionic rays gave Erik change his physical size by sheer force of will, alternatively growing stronger and more resilient with increased height. He could also increase his size to upwards from 50 to 60 feet.
Superhuman Strength: Dallas possesses vast superhuman strength, the limits of which aren't known, but she can lift in excess of 100 tons.
Superhuman Stamina: Dallas' ionic body grants her unlimited stamina and is therefore immune to fatigue.
Invulnerability: Dallas' bodily tissues are much harder due to being ionized organic matter instead of normal flesh and far more resistant to physical injury than the bodily tissues of a normal human.
Superhuman Durability:
Superhuman Agility: Dallas' agility, balance, and bodily coordination are all enhanced to levels that are beyond the natural physical limits of even the finest human athlete.
Superhuman Reflexes: Dallas' reflexes are similarly enhanced and are superior to those of the finest human athlete.
Advanced Healing: Dallas heals at a faster rate than a normal human normally would heal.
Immortality: Due to the Ionic Energy that empowers her, Dallas no longer ages and is immune to disease and infection.
Dallas Riordan on the Marvel Wiki