Kira Kira no Mi (Diamond)
Devil Fruit, Very Rare
Type. Body Enhancer Paramecia
Fruit appearance. A shimmering blue berry with multifaceted crystalline surfaces.
Description. This devil fruit empowers its user with the ability to transform or harden any part of their body into diamond.
Sea Weakness. You are weak to water and seastone.
Sharpened Diamond Body. As a bonus action, you can transform any part of your body into a melee weapon of your choice. This can range from turning an arm into a diamond longsword, fingers into dagger-like diamond blades, or even combining your arms or legs into a diamond greatclub. Weapons you create have the same properties as their normal counterparts but are considered magical for the purpose of overcoming resistance. You can use this part of your body as a weapon attack, and you are proficient with it. You can only use one weapon active this way at a time, and can dismiss it using a bonus action.
Diamond Skin. Your AC can’t be less than 20, regardless of what kind of armor you are wearing. By spending 1 devil fruit charge as a bonus action, you can gain a +2 bonus to your AC for up to 1 minute or until you fall unconscious (this effect doesn’t stack).
Brilliant Punk. You can spend a bonus action to bolster the next melee weapon attack you make during your turn with your diamond body. On a hit, the attack deals an extra 2d6 damage of the weapon’s damage type. Additionally, if the target is a creature, it must succeed on a Strength saving throw against your Devil Fruit save DC or be pushed 10 feet away from you and knocked prone.
Spells (Diamond Techniques). This devil fruit power has 13 charges. You can expend 1 or more of its charges to cast one of the following spells from it without needing to expend material components: Thunder Step (3 charges, and can cast at higher levels by spending additional charges), Stoneskin (Self; 4 charges), Destructive Wave (5 charges), or Tenser’s Transformation (6 charges). The devil fruit regains expended charges daily at dawn.
Awakening (Brilliant Wave). Once you’ve awakened your power, you can use an action to unleash a mighty earth shockwave affecting any creature standing on the ground within 60 feet of you. Any creature hit by the shockwave must make a Constitution saving throw against your Devil Fruit save DC. On a failed save, a creature takes 10d10 bludgeoning damage and 10d10 thunder damage, and is knocked prone. A creature that succeeds on its saving throw takes half as much damage and isn’t knocked prone. Additionally, immediately after you use this ability, the ground within 60 feet of you becomes extremely hard and diamond-like for 1 minute, and cannot be destroyed or affected by any spells or other effects for the duation. Once used, you can’t use this action again for another 24 hours.