Vigor of the Oni

The burden of allowing yokai magic into your being is one that weighs heavy on your spirit, and so to be truly ready to walk the Path of the Oni Soul, an acolyte must first be able to bear a burden that weighs heavy on their body. When you choose this path at 3rd level, you can gain the benefits of rage while wearing heavy armor.

Tsukimono

Also at 3rd level, your rage tears open your soul, making room for a yokai to temporarily take residence within, imbuing you with their power and giving you an appearance resembling that which possesses you. When you gain this feature, select two yokai from the list on the next page. These become your chosen yokai. When you enter your rage, you can invite one of your chosen yokai to inhabit you, giving you additional benefits for the duration of your rage.

When you gain a level in this class, you can select one of your chosen yokai and replace it with another yokai of an appropriate level. You can select one additional chosen yokai when you reach 6th, 10th and 14th level in this class.

Might of the Oni

At 6th level, you've carried your myriad burdens for so long that weight means nothing to you anymore. You count as one size larger when determining your carry weight.

Additionally, you can wield any melee weapon to its full effect with one hand, regardless of whether the weapon has the heavy or two-handed property. Your one-handed attacks using weapons with the versatile property deal damage as if you were wielding them with both hands. When dual wielding, if either of your weapons have the heavy or two-handed property, your offhand attack is made at disadvantage.

Ghostlight Invocation

At 10th level, your ability to draw yokai into yourself is strong enough to attract stray spirits and souls alongside them, taking the form of small orbs of blue fire known as "hitodama" or "onibi". Once per short rest, you can cast the spirit shroud spell as part of the same bonus action as entering a rage. Casting spirit shroud in this manner does not require concentration, and lasts until your rage ends.

Daidarabotchi

Prerequisite: 14th level

You are inhabited by the spirit of the daidarabotchi, a pitch black humanoid so large that it dwarfs mountain ranges - your flesh takes on the appearance and texture of raw obsidian. While inhabited by the daidarabotchi, your size becomes Huge, the range of your melee weapons increases by 5ft, and you deal an additional 1d8 with melee weapon attacks. Moreover, you have advantage on Strength checks and saving throws, and cannot be moved against your will. You become immune to non-magical piercing, slashing and bludgeoning damage for the duration of your rage.

Gashadokuro

Prerequisite: 10th level

You are inhabited by the spirit of the gashadokuro, a colossal skeletal amalgam of souls left to rot in unmarked mass graves - your skin shrinks to give you a gaunt, bony appearance and your eye sockets become shadowed. While inhabited by the gashadokuro, you emit a deathly black mist from your every pore. This mist has a 10-foot-radius centered on you, and moves with you. When a creature enters the mist for the first time on its turn or starts its turn there, that creature must make a Constitution saving throw (DC 8 + your proficiency bonus + your Constitution modifier). The creature takes 3d8 necrotic damage on a failed save, or half as much on a successful one.

Kamaitachi

Prerequisite: 6th level

You are inhabited by the spirit of the kamaitachi, a wind-riding weasel with claws sharper than steel - you grow metallic blades from your forearms and shins, and instinctively crouch to minimise your wind resistance. While inhabited by the kamaitachi, your movement no longer provokes opportunity attacks. Once per rage, you can cast the steel wind strike spell, using a melee weapon attack instead of a melee spell attack, and dealing magical slashing damage instead of force. Your rage ends immediately after casting steel wind strike.

Kappa

You are inhabited by the spirit of the kappa, a reptilian imp that thrives in the waters - your skin takes on a turquoise hue and hardened scales speckle your face. While inhabited by the kappa, you can breathe underwater and gain a swimming speed equal to your walking speed, and you gain a +2 to attack and damage rolls made when both you and your opponent are fully submerged in water. Your rage no longer ends early if you go one turn without attacking a hostile creature or taking damage, as long as you spend that turn fully submerged in water.

Kodama

You are inhabited by the spirit of the kodama, a sprite said to live within great trees and watch over surrounding forests - your hair turns green and its texture becomes that of fresh leaves. While inhabited by the kodama, friendly creatures gain +2 to their AC as long as they are within 5ft of you. If a creature benefiting from this bonus takes damage, it counts as you taking damage for the purposes of sustaining your rage.

Nekomata

Prerequisite: 6th level

You are inhabited by the spirit of the nekomata, a malicious cat yokai that plays with corpses like marionettes - you sprout two long, black tails and facial whiskers. While inhabited by the nekomata, you can use a bonus action during your rage to puppeteer a dead creature within 60ft of you, forcing it to attack a target of your choice within the creature's range. A creature puppeteered in this manner cannot move, nor can it cast spells or cantrips - it can only attack with whatever melee or ranged weapon it has equipped, or with unarmed attacks if it isn't carrying a weapon. A creature can use an action to disarm a puppeteered corpse, forcing it to resort to unarmed strikes.

Nurikabe

You are inhabited by the spirit of the nurikabe, a mysterious wall-like creature that delights in blocking the paths of travelers - your shoulders broaden, your torso thickens and your arms lengthen. While inhabited by the nurikabe, you can make opportunity attacks without using your reaction, and you can use your reaction to make a melee attack against a creature within 5ft of you. These attacks can only be used to attempt to shove an enemy.

Shinigami

Prerequisite: 14th level

You are inhabited by the spirit of the shinigami, a harbinger and perpetuator of death and evil - your skin becomes deathly pale, and you exude a blood-red aura. While inhabited by the shinigami, you can choose one hostile creature within 60ft of you that can see you. You instantly teleport to a space of your choice within 5ft of that creature. For the duration of your rage, you are invisible to all creatures except the chosen creature, you automatically know where your chosen creature is at all times, and your weapon attacks deal an additional 2d8 psychic damage to the chosen creature. If you attack a creature other than your chosen target during your rage, you cease to be invisible to that creature.

Tengu

Prerequisite: 10th level

You are inhabited by the spirit of the tengu, a mountain-dwelling crow-like humanoid with a wellspring of spiritual energy - you begin to molt black feathers and your mouth and nose are replaced with a sharp beak. While inhabited by the tengu, you gain a flying speed equal to your walking speed.

Tsuchinoko

You are inhabited by the spirit of the tsuchinoko, a stout snake-like beast with a potent venom and a surprising swiftness - your eyes' sclerae turn yellow, your pupils slit, and your tongue becomes long and forked. While inhabited by the tsuchinoko, your movement speed is increased by 10ft. When successfully making a weapon attack, you choose to deal either the weapon's normal damage type or poison damage. Rolling the maximum number on the weapon's damage die also inflicts the target with the poisoned condition until the end of your next turn.