The player collects the cards by finding the keys to open the chests containing the cards. Cards are equipped to the character to increase the character's strength. The character can only equip a card when there are empty card slots on him and there are conditions for Tags (tags) to wear the tag.
When collecting enough 1 certain set of cards, the player can equip the player and activate the effect of the card set, through which the player receives additional extremely valuable stats. Cards with high rarity will have a chance to appear passive skills. This is an extremely valuable and useful skill for players.