Fairy tail dragon

Marvel has no real dragon other than the very few that are: Grendel ( a symbiote), fafnir, and Shou Lao "the immortal pack" every generation of iron fists has rolled him up from the past million + years.

The mc will be a fairy tail dragon

- superhumanly dense scales and hide

- superhuman strength, speed (via flight), reflexes, and healing factor.

- magic

-power bestowal ( dragon slaying magic)

-shapeshifting (assuming acnologia was not that special in that aspect)

- elemental gluttony & elemental manipulation ( ability to absorbs and use a specific element)

- intimidation

- superhuman senses

- extremely long life spans ( acnologia was already 400+ years old and was still at his prime physically) possibly 3k+ years lifespan.