You wouldn’t think that hunting shadows would be a very lucrative profession, since all it takes to catch them is a light source and functional eyes. So it can be assumed that Devilian‘s Shadowhunter is less a hunter of shadows and more a hunter in and around shadows. As the class is armed with a whip and shuriken, the arsenal seems a bit better suited to that goal in the first place. You can read about it on the official site as part of the game’s slow roll of information for players.
Also part of that slow roll is a feature on the Talisman mechanic. Talismans are functionally cards that can be upgraded and consumed as you collect them. Equipping the Talismans provides a variety of stat boosts, and unwanted Talismans can be consumed to level up existing Talismans. Check out the full rundown on the mechanics to see how you can derive a lot of power from a set of cards.