Natural

"Natural" are cards that can be used to support any Gates.

List of Attribute

 * Swordsman
 * Spearman
 * Magician
 * Goblin
 * Beasts

Units

 * Blademaster, Samuel
 * Goblin Soldier
 * Sword Peasant
 * Spear Peasant
 * The Great Librarian

Spells

 * Supply Resource
 * Battle Uprising

Artifacts

 * Shrine of Miracles