Superpowered Spirit Card Master

An age belonging to spirit card masters.

[Mechanical Heart + Deep-Sea Crystal + Black Iron = WarGreymon?]

[Spirit Monkey's Heart + Purpleheart Iron Staff + Spirit Illumination Stone = Great Sage Equal to Heaven?]

[Heart of Magic + Mayan Staff + Poké Ball = Dark Magician Girl?]

While every other spirit card master racks their brains and shuts themselves away to create spirit cards,

Chen Feng is seriously thinking about one question.

"Which mythical beast hasn't come out to stretch its legs yet?"