Example: Moku Moku no Mi (Smoke)
Devil Fruit, Very Rare
Type. Gaseous Logia
Fruit appearance. Puffy and extremely light white melon with cloud-like swirls and a swirly green stem.
Description. Allows its user to create, control, and transform into smoke at will.
Sea Weakness. You are weak to water and seastone.
Logia Immunity. You are immune to bludgeoning, piercing, and slashing from nonmagical attacks, as physical objects pass through your smoke body. Additionally, you can see normally through smoke, cloud, and fog-like effects that cause an area to become lightly or heavily obscured.
Elemental Form. You can use the “Logia Elemental Form” feature listed under “Designing a Logia Devil Fruit Sheet”.
Smoke Strike. You learn the mage hand cantrip. Additionally, when you make a melee weapon attack on your turn, you can make its reach extend up to 30 feet by stretching your smoke limbs.
Smoke Screen. You can use the Fog Cloud spell at will, casting at the 1st level, without expending a spell slot, charge, or material components. You can cast it at higher levels by spending a Devil Fruit charge for each level you cast it higher.
Smoke Prison. As an action during your turn, you can target any number of creaturs within any of your smoke or fog spell areas. Each creature must succeed on a Strength saving throw against your Devil Fruit save DC or become restrained for the duration of the smoke or fog (Escape DC equal to your Devil Fruit save DC).
Spells (Smoke Plumes). This devil fruit power has 13 charges. Using your ability to produce smoke, you can expend 1 or more of its charges to cast one of the following spells from it without needing to expend material components: Misty Step (2 charges), Gaseous Form (3 charges), Stinking Cloud (3 charges), Cloudkill (5 charges), Investiture of Wind (6 charges), Wind Walk (6 charges). The devil fruit regains expended charges daily at dawn.
Awakening (Explosive Plume). Once you’ve awakened your power, you can use an action to cast Incendiary Cloud without expending any charges or material components. You can’t use this feature again for another 24 hours.