# Duel Terms

**Duel Rules**

* Players freely select three heroes from the five heroes set in their deck to duel.
* Heroes must always be accompanied by cards when dueling.
* Cards used in duels disappear after the duel, regardless of the outcome.
* Heroes used in duels remain available indefinitely and do not disappear.

**Card**

* Card can be generated using the Card Scanner. or get stage reward.
* Each card has a Number on the bottom left, which affects attack power, and a Number on the bottom right, which affects defense power.
* Numbers range from 1 to 5, with higher values indicating stronger effects.
* Card are marked with a Faction and Element, which can affect their power based on compatibility with the hero entered in the duel.

**Faction**

* Both heroes and monsters have Factions.
* There are no inherent advantages or disadvantages based on Faction.
* Faction synergies are granted based on the combination of the hero's character, weapon, and armor Factions.

**Factor**

* The unique coefficient is a multiplier that each character, armor, and weapon uniquely possesses. This is not represented in a table but is applied as a unique multiplier.

**Element**

* There are six elements: fire, water, earth, lightning, wind, and Special.
* Fire is strong against lightning but weak against water.
* Water is strong against fire but weak against earth.
* Earth is strong against water but weak against wind.
* Wind is strong against earth but weak against lightning.
* Lightning is strong against wind but weak against fire.
* Special grants synergy effects regardless of compatibility with the element of the hero.