Nobody talks about this one. A card game tie-in from 2014 that somehow built a real story around summoning monsters, where the actual duels matter because the characters are fighting for something that costs them. The animation is rough in places, but the momentum never stops, fifty-two episodes of escalating stakes where you stop caring that you're watching an ad for cardboard and start caring whether these kids survive what they summoned.

Majin, the being who created the universe, has suddenly come back to life in the present day, and at the same moment invaders from the darkness arrive on Earth. Shougo Ryuujin is an ordinary high school student who uses a Bone Card to become the Bone Fighter Dragonbone. Alongside the other White Bone warriors, he stands against the Dark Bone, a threat that has emerged to lay waste to the planet. Three men pursue a young boy, wondering whether he could truly be humanity's final hope. Adapted from Bandai's digital card game, the story also hints that the real enemy may lie within.