The Immortal Weapon of Marvel

There are dragons in the Marvel Universe, and more than one. Yet every one of them is a giant lizard with wings on its back, creatures that came here from outer space.

Ancient China also has dragons, but they are unlike all other dragons. Countless legends and idioms speak of them, such as the auspicious union of dragon and phoenix.

However, now only the Phoenix has continued to appear throughout Marvel history, and it always appears on Earth.

If it is a cosmic force, why is it so reluctant to leave this place? Perhaps there is something here that matters greatly to it.