Permeation (5e Class)

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Welcome to the Permeation Quirk! A nifty quirk that lets you pass through objects and turn intangible. With this power, your enemies don't stand a ghost of a chance!


Before you go Plus Ultra....[edit]

There are a few requirements before you can get your Permeation Quirk. You must meet the following requirements:

-Have a minimum Constitution and Dexterity of 14

-Can not be a Construct, Undead, or Elemental.

The Heroic User of the Permeation Quirk: Mirio Togata

Creating a Permeation[edit]

Quick Build

You can make a Permeation quickly by following these suggestions. First, Dexterity should be your highest ability score, followed by Charisma. Second, choose the Folk Hero background.

Class Features

As a Permeation you gain the following class features.

Hit Points

Hit Dice: 1d8 per Permeation level
Hit Points at 1st Level: 8 + Constitution modifier
Hit Points at Higher Levels: 1d8 (or 5) + Constitution modifier per Permeation level after 1st


Armor: Light Armor
Saving Throws: Dexterity, Constitution
Skills: Choose two from Athletics, Acrobatics, , Performance


You start with the following equipment, in addition to the equipment granted by your background:

Table: The Permeation

Level Proficiency
Features Hand-to-Hand Combat Hit Die
1st +2 Permeation, Hand to Hand Combat 1d4
2nd +2 Unarmored Defense 1d4
3rd +2 Phase 1d4
4th +2 Ability Score Improvement 1d4
5th +3 Extra Attack 1d6
6th +3 Full Permeation 1d6
7th +3 Permeation Propulsion 1d6
8th +3 Ability Score Improvement 1d6
9th +4 Phase Feature 1d6
10th +4 Phase Strikes,Blinder Touch Eyeball Crush 2d4
11th +4 Phase Feature 2d4
12th +4 Ability Score Improvement 2d4
13th +5 A Hero's Cape 2d4
14th +5 Phase Feature 2d4
15th +5 Phantom Threat 2d6
16th +5 Ability Score Improvement 2d6
17th +6 99% Permeation 2d6
18th +6 Extra Attack(2) 2d6
19th +6 Ability Score Improvement 2d6
20th +6 Lemillion 2d6


Starting at 1st level, you acquire the ability to pass through objects and solid matter. However, the difficulty of such a task has limited your power. As an action, you can turn a small part of your body intangible, such as a hand, and pass it through a solid object. This lasts until you end it as a bonus action. If you end this effect while you are phasing through an object, your movement speed becomes 0 until you remove the body part. If you were holding anything with that hand or anything was attached to that part of your body, then you drop the item or is detached from you. Here are some examples of what you can do with your permeation:

  • Pull a lever or push a button on the other side of a wall.
  • Knock something over on the other side of your cover to cause a distraction.
  • Passing the part of your head near your ear or eye through a wall to hear a conversation or to observe the next room over.

Certain features require creatures to make a saving throw. Its DC is the following:

Your Permeation Effect DC = 8 + your Dexterity modifier + your Proficiency bonus.

Hand to Hand Combat[edit]

Starting at 1st level, you learn a method of fighting that makes the best use of your skills. You can make unarmed strikes which you are proficient in, dealing 1d4 + your Dexterity modifier. This damage increases at 5th, 10th, 15th, and 20th level.

Unarmored Defense[edit]

At 2nd level, while you are not wearing any armor or using a shield, your Armor Class equals 10 + your Dexterity Modifier + your Constitution Modifier.


At 3rd level, you chose a Phase. Choose between Phantom or Spectre, both detailed at the end of the class description. Your choice grants you features at 3rd and again at 9th, 11th, and 14th level.

Ability Score Increase[edit]

When you reach 4th level, and again at 8th, 12th, 16th and 19th level, you can increase one ability score of your choice by 2, or you can increase two ability scores of your choice by 1. As normal, you can't increase an ability score above 20 using this feature.

Extra Attack[edit]

Beginning at 5th level, you can attack twice, instead of once, whenever you take the Attack action on your turn. This increases to 3 attacks starting at 13th level.

Full Permeation[edit]

At 6th level, you learn the full ability of your Permeation. As an action, you may make your entire body immaterial. You drop any and all items on your person, become blind, deaf, and immune to all damage, and you fall through any objects including the ground itself. This effect ends when you choose to do so as a bonus action. If you are completely phased inside an object when you end this effect, your entire body instantly teleports to the closest area large enough for your entire body directly above you. While using this feature, you can not breath.

Permeation Propulsion[edit]

At 7th level, you learn how to launch yourself into the air through your quirk. As a bonus action, you may permeate into the ground or a wall and then deactivate your quirk, which causes your body to be propelled 10 feet up or forward.

Phase Strikes[edit]

At 10th level, due to your mastery in hand to hand combat increasing, your unarmed strikes now overcome resistances and immunities.

Blinder Touch Eyeball Crush[edit]

At 10th level, you learn a new technique that allows you to feint an attack. As an action, you select a creature that is not blind and has eyes and attack them with an attempt to jab their eye. The target must succeed a Wisdom saving throw or become distracted by your attempt to jab their eye, allowing you to deliver a strike to their stomach that knocks the wind out of them, dealing two unarmed strikes die of damage, knocking them prone, and stunning them until the end of their next turn. This feature may be used equal to your dexterity modifier, regaining use at the end of a long rest.

A Hero's Cape[edit]

At 13th level, as an action, you may grant every creature of you choice within 15 feet advantage on Charisma saving throws until the end of your next turn, or you may remove the frightened condition on one creature within 5 feet. You may do this a number of times equal to your Charisma modifier.

Phantom Menace[edit]

At 15th level, you discover a technique that takes full advantage of your quirks abilities. As an action, you select up to two targets within 5 feet of each other, permeate into a wall or floor, angle yourself, and then deactivate your quirk, propelling you toward your targets and dealing a devastating blow to them. Your targets must succeed a Dexterity saving throw to avoid your attack or take 8d6 bludgeoning damage and be knocked prone. You may use this once, regaining use at the end of a long rest.

99% Permeation[edit]

At 17th level, while you are under the effects of Full Permeation, you may toggle whether or not you fall through the ground as a bonus action action by keeping only the soles of your feet material.

Hero of the Next Generation: Lemillion[edit]

At 20th level, you have fully mastered your quirk. You may initiate any form of phasing as a bonus action, and ending the effect can be done as a free action.


A subclass focused on your permeation and abilities to do with it.

Hair Clothes

At 3rd level, when you phase, you do not drop any clothes you are wearing. This does not extend to any armor or weapons that are also equipped or equipment that is not equipped.


At 9th level, you may alternate phasing and de-phasing your fingers through any large object. You gain a climbing speed of 45 feet.

Predictive Intuition

At 11th level, at the end of each of your turns while using Full Permeation, every creature within 15 feet of you must attempt an Intelligence (Perception) check, contested by the creature's passive Charisma (Deception) check (10 + deception modifier). On a failure, you know their actions and movement regardless of being blind and deaf.

Unseen Force

At 14th level, while you are using Full Permeation, you can pass through even light, making you invisible.


A subclass focused on your fighting and improving your combat capabilities.

Toppling Phase Sweep

At 3rd level, you devise a way to phase your ankle through a creatures leg, then make it material again, kicking their legs out from under them. When you make a successful unarmed attack, you may forgo dealing damage to knock the creature prone.

Attack Phasing

At 9th level, you institutionally attempt to phase targeted areas of your body when they're attacked. If an effect's DC or attack roll is less than your Permeation Effect DC, you may become immune to any of its effects. You may do this a number of times equal to your Charisma modifier, regaining all uses at the end of a long rest.

Phasing Attack

At 11th level, you may phase your attacks through a creature. When you make an unarmed attack, you may make the attack automatically hit or, on a hit, have it deal twice as much damage. You may do this a number of times equal to half your Charisma modifier, regaining all uses at the end of a long rest.

Sheer Heart Attack

At 14th level, as an action, you may attempt to man-handle a Large or smaller creature's heart. If they succeed any of the following saving throws, all of this feature's effects end. Upon using this feature, they must attempt a Dexterity saving throw. On a failure, they become grappled. As an action your next turn, they must attempt a Strength saving throw. On a failure, they become incapacitated. As an action on your next turn, they must attempt a Constitution saving throw. On a failure, they die instantly. This feature has no effect against creatures that are Construct, Undead, or Elemental. You may use this once, regaining use at the end of a long rest.

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