Shinigami

Shinigami are mysterious, extraplanar creatures deeply tied to death. Their exact origins are a mystery, even to them, but they are drawn to the Material Plane by curiousity about humanoids. Shinigami take many forms, but most appear as ghastly humanoids with pale skin and harsh features.

Deadly Notetakers. Shinigami are the original possessors of death notes, books that allow them to control the final fates of mortals. A shinigami can determine the time and place of a mortal's death simply by writing it in a death note, and by doing so, the shinigami gains the mortal's remaining lifespan.

Some shinigami pass death notes along to humanoids for their own amusement.

Perplexing Predators. Shinigami view their relationship with mortals as simple coexistence. Mortals must die eventually, and shinigami need that death to survive, just as mortals must eat to sustain themselves.

Shinigami have theoretically infinite lifespans and constantly seek something to fill this time. They busy themselves with mortal hobbies, and some have even been known to befriend mortals.

Shinigami are difficult to intimidate or incite to violence and generally avoid direct fights.

Deathly Nature. A shinigami doesn't require air, food, drink, or sleep.

Devil Fruit

Wondrous item, rarity by fruit

A devil fruit is a fruit about the size of an apple. By eating the fruit, you will gain the effects granted by it for 24 hours. Additionally, if you eat a piece of the fruit every day for 7 days, the effects become permanent.

While under the effects of a devil fruit your movement speed in water becomes zero and you cannot breathe under water.

Dark Fruit (Legendary). A black fruit that stains the lips purple and has a bitter taste, it grows on a short tree that thrives in dark, shady environments and blossoms in the night. By eating the fruit, you gain the following properties:

• You are immune to necrotic damage.
• Your melee attacks deal necrotic damage. When you make a melee attack, add 2d6 necrotic damage.
• You have darkvision out to 120 ft.
• You have advantage on Dexterity (Stealth) checks made in the shadows or in dark areas.
• You move with ease through the shadows. As an action, you can teleport to an area of shadow that you can see within 60 feet of you.
• Once per day, you can create a 30-foot sphere of magical darkness centered on you. Inside the sphere, spells cannot be cast, and summoned creatures disappear. Targeted spells such as magic missile and charm person have no effect on creatures inside the sphere. A slot expended to cast a spell is still consumed. Time spent suppressed by this effect still counts against the duration of ongoing magical effects. The sphere lasts for 1 minute or until you die.

Doppelganger Fruit (Rare). This fruit grows in gloomy conditions on vines that grow alongside other fruiting plants. It looks and tastes like the fruits it grows alongside. If you eat the fruit, you can use an action to polymorph into an identical copy of a creature of your size or smaller that you have seen and touched. You retain your alignment, hit points, Hit Dice, ability to speak, languages known, class features, proficiencies, and Intelligence, Wisdom, and Charisma scores as well as the ability to polymorph as an action. Otherwise, you take on the statistics and capabilities of the new form.

You can use an action to polymorph back into your true form. Otherwise, you will change back into your true form when you die or when the effects of the doppelganger fruit end.

Empowerment Fruit (Very Rare). A dark red fruit with a strong savory flavor, it grows on vines in very fertile soil. If a creature eats the fruit, their Strength and Constitution scores increase by 2 up to a maximum of 20 for 1 minute if they take 15 or more points of damage from a single attack.

Fire Fruit (Legendary). Bright red with a spicy flavor, this fruit grows in warm climates from trees that produce a stinging sap. By eating the fruit, you gain the following properties:

• You are immune to fire damage.
• Your melee attacks deal fire damage. When you make a melee attack, add 2d6 fire damage.
• You can breathe fire. As an action, you exhale fire in 15-foot cone. Each creature in that area must make a DC 18 Dexterity saving throw. On a failed save, they take 4d6 fire damage or half as much damage on successful saving throw. You cannot use this action again until you complete a short or long rest.
• You exude an aura of heat during combat. When a creature ends their turn within 5 feet of you, they must make a DC 14 Constitution saving throw. On a failed saving throw, the creature takes 1 level of exhaustion. If the creature succeeds their saving throw, they are not affected by this aura for 24 hours.

Ice Fruit (Legendary). A pale blue fruit with a minty flavor, it grows from a low shrub in snowy environments. By eating the fruit, you gain the following properties:

• You are immune to cold damage.
• Your melee attacks deal cold damage. When you make a melee attack, add 2d6 cold damage.
• You can breathe frost. As an action, you exhale cold air in a 15-foot cone. Each creature in that area must make a DC 18 Constitution saving throw. On a failed save, they take 4d6 cold damage or half as much damage on a successful saving throw. You cannot use this action again until you complete a short or long rest.
• You exude an aura of freezing cold during combat. Creatures that begin their turn within 15 feet of you have their speed halved until the start of their next turn.

Invisibility Fruit (Rare). Almost completely transparent with a light citrus taste, this fruit grows from a white-barked tree with drooping limbs in environments that see a lot of rain. By eating the fruit, you gain the following properties:

• You can become invisible as a bonus action. This lasts for one hour or until you use a bonus action to become visible. You cannot use this ability again until you take a short or long rest.
• You can us an action to make up to 3 creatures or objects that you can touch that are Large or smaller invisible for one hour or until you die or use an action to make them visible. You cannot use this ability again until you take a long rest.

Beads of Subjugation

Wondrous item, rare

These simple black beads are dangerous to wear. When a creature puts this necklace on, they must make a DC 15 Wisdom saving throw. On a failed save, they cannot remove the necklace except by the power of the remove curse spell or similar magic.

The wearer of this necklace is bound to follow the first simple command they hear as if under the effects of the command spell. That command can be repeated at any time as a bonus action and the wearer will be compelled to follow it so long as the necklace is on them. Each time the command is used, the wearer can repeat the saving throw. On a successful save, the necklace breaks and disappears.

Hiraikotsu

Weapon (giant boomerang), rare

A boomerang carved from the bone of a giant monster, hiraikotsu is a fabled weapon among those who hunt fiends. You gain a +1 to attack and damage rolls made with this magic weapon.

When you hit a fiend with this weapon, the fiend takes an extra 3d6 bludgeoning damage. For the purpose of this weapon, "fiend" refers to any creature with the fiend type.

Robe of the Fire-Rat

Wondrous item, rare

This bright red robe is crafted from the wool of a fireproof beast. While wearing this robe, you are immune to acid and fire damage and can travel in extremely hot environments such as volcanos and some deserts without concern for the elements.

Additionally, you are resistant to bludgeoning, piercing, and slashing from nonmagical attacks.

Tensaiga

Weapon (greatsword), artifact (requires attunement)

Forged by a fey blacksmith commissioned by an archfiend seeking redemption, Tensaiga and its twin Tessaiga were intended to pass down to the archfiend's tiefling children should he perish in his efforts to seize control of the underworld and bring justice to the demons and devils that populate it.

Tensaiga was crafted to be a healing sword, protecting the weak and even raising the dead. It was not meant for killing and will resist a vicious wielder.

Magic Weapon. Tensaiga is a magic weapon that grants a +3 bonus to attack and damage rolls made with it. When you hit a fiend or undead with it, that creature takes an extra 4d6 slashing damage

Protector of the Innocent. If its wielder attacks a humanoid with this sword, the wielder must make a DC 15 Charisma saving throw. On a successful save, the wielder takes 3d6 psychic damage and is immune to this effect for 24 hours. On a failed save, the wielder is dominated by the sword as if by the dominate monster spell, and the sword forces the wielder to yield and teleport away.

Guardian Sword. When you are attuned to this sword and it is in your possession, Tensaiga gives a +4 bonus to your Armor Class when you drop to 10 or fewer hit points.

Tensaiga's Eyes. While attuned to the sword, you have truesight out to 60 feet and darkvision out to 120 feet.

Limited Resurrection. As an action, Tensaiga can be used to revive a dead creature as if by the revivify spell without the use of material components. A creature revived by Tensaiga can only be resurrected in this way once, after which the sword's limited resurrection will have no effect on them.

Spells. While Tensaiga is on your person, you can use an action to cast one of the following spells from it: etherealness, greater restoration, hallow, heal, or teleport. ONce you use the sword to cast a spell, you can't cast that spell again from it until the next dawn.

Sentience. Tensaiga is a sentient weapon with an Intelligence of 15, a Wisdom of 13, and a Charisma of 16. It has hearing and darkvision out to a range of 120 feet.

The weapon communicates telepathically with its wielder and can speak, read, and understand Abyssal, Celestial, Common, Infernal, and Sylvan.

Personality. Tensaiga's primary interest is the protection of the innocent, and it will encourage its wielder to take whatever actions necessary to fulfill that goal.

Tensaiga will look for opportunities to separate itself from an unjust master. This may include encouraging its master to take on life threatening challenges.

Destroying Tensaiga. The sword may be destroyed by its twin, by being thrown into a volcano, or by means of the wish spell. The sword may also be unmade by the archfey that forged it.

Random Properties

These artifacts do not typically have random properties as they are meant to be very specific weapons. I am simply not a fan of giving random properties to such powerful weapons. While it may make each iteration of the weapon in different campaigns more unique, it can also detract from the theme and story of the weapon.

However, random properties can be added at the DM's discretion. I would suggest the following adjustments:

Tensaiga gains 1 major beneficial properties and 2 minor detrimental properties.

Tessaiga gains 1 major beneficial property, 1 major detrimental property, and 1 minor detrimental property.

Nekomata Kitten

Tiny fey (shapechanger)

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• Armor Class 13
• Hit Points 60 (8d10 + 16)
• Speed 30 ft.

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STR	DEX	CON	INT	WIS	CHA
10 (+0)	16 (+3)	12 (+1)	7 (-2)	12 (+1)	14 (+2)

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• Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
• Damage Immunities fire
• Senses darkvision 60 ft., passive Perception
• Languages —
• Challenge 3 (700 XP)

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Shapechanger. The nekomata can use its action to polymorph into its battle cat form or back into its kitten form. Any equipment it is wearing or carrying isn't transformed. Creatures within 5 feet of the nekomata take 2 (1d4) fire damage when it polymorphs.

Keen Hearing and Smell. The nekomata has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Actions

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) piercing damage.

Nekomata Battle Cat

Large fey (shapechanger)

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• Armor Class 15
• Hit Points 60 (8d10 + 16)
• Speed 40 ft., fly 50 ft.

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STR	DEX	CON	INT	WIS	CHA
16 (+3)	20 (+5)	14 (+2)	7 (-2)	12 (+1)	14 (+2)

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• Saving Throws Str +5, Dex +7, Con +4
• Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
• Damage Immunities fire
• Senses darkvision 60 ft., passive Perception
• Languages —
• Challenge 3 (700 XP)

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Shapechanger. The nekomata can use its action to polymorph into its kitten form or back into its battle cat form. Any equipment it is wearing or carrying isn't transformed. Creatures within 5 feet of the nekomata take 2 (1d4) fire damage when it polymorphs.

Keen Hearing and Smell. The nekomata has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Lunge. When the nekomata moves 15 or more feet before hitting a target with its bite, the target must make a DC 13 Strength saving throw or be knocked prone.

Actions

Multiattack. The nekomata makes two attacks with its bite.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) piercing damage plus 7 (2d6) fire damage.

No True Form

Unlike many shapechangers,nekomata have no true form. Both their kitten and battle cat forms are equally "true."

Spells and effects that would normally reveal a shapechangers true form or force it to take on that form have no effect on most nekomata.

However, this is not true for nekomata that were once normal cats. Spells and effects that reveal a shapechangers true form or force it to take on that form reveal its original cat form. Likewise when such a nekomata dies, it reverts to its original cat form.

Nimbus

Nimbus's are animated clouds capable of carrying riders through the sky at great speeds. A nimbus will only allow a pure-hearted individual to ride it. Wicked creatures that try to ride a nimbus will simply fall through the cloud.