Key Stones used as a physical weapon are affected by strength and dexterity accordance with melee/thrown weapon properties. Bind/Divine damage is calculated through Divinity and the Key Stones level.
Lv 1 - Conceptual Understanding - Obtained after properly understanding the use of the Key Stone.
____Ability to use a Key Stone.
-Weight: Half actual value
-Key stone activation: N/A
____All Key Stones become lighter; the ability to activate the Key Stone is still dormant. At best you are now more proficient and wielding a rock as a weapon.
(Activating the Key Stone requires you to fight either a demon and make physical contact with it or be used to anchor the ground in an earthquake)
Lv 2 - Enlightenment - Obtained after activating the Key Stone.
____Ability to understand and use a Key Stone.
-Weight Distribution: Fifth actual value
-Strength/Durability: Damage Modifier on Earth or Demonic targets. Durability of the Key Stone is also modified.
-Key stone activation: Upon Demon, Earth type Targets.
____All Key Stones become incredibly light, as if partially levitating. This semi-weightless feeling is only applied towards those activating the Key Stone. Upon contact with a Demon, Earth type Target; an extra attack is applied. The effects of the attack is as follows.
-Binds the target (varies by level of both the User, the stone, and the skills of the user)
-Divine damage modifier (varies by level of both the User, the stone, and the skills of the user)
A Binding type weapon effective against Demon,Earth types. The actual use of combat is still the same regardless.
Lv 3 - -
-Key stone activation: