Homebrew Inkling/Octoling (Splatoon 3) Species Details

Ink Swim

As a bonus action, you may shift into a squid or back into your humanoid form. Upon swimming in ink as a squid,your speed increased to 30 feet, your ink tank (if you are using ink weapons) refills, and you gain 1d4 hitpoints for every round you remain submerged. You cannot attack as a squid, and your speed outside of the ink is reduced to 15 feet. When swimming in ink, any other creatures outside of the ink must succeed on a DC 12 Perception check or higher to notice you. Other inklings using Ink Swim in the same swathe of ink are immediately aware of your presence.

Color Pulse

Once per short or long rest, Inklings may change the color of their tentacles to another color of their choosing (e.g pink to orange.) This also changes the color of the ink they use in battle and can swim in. It may also determine your teammates/party members you can jump to.

Hydrophobic

When in contact to water, you rapidly deplete your HP. When fully submerged- that's an Inkling's nightmare.

Head Tentacles

Inklings and Octolings both have head tentacles, or as the cultured people call it "Hair." It can be styled in anyway and it also can be used in combat to easily grapple, pull or shove. 

Super jump

Once per long rest,  Inklings or Octolings may enter squid/octopus form and leap to any unoccupied space up to 100 feet away.

Once per short rest, Inklings or Octolings may enter squid/octopus form and leap to any party member within 300 feet.

Ink Shot

As an action, you can spew ink up to 20' in any direction. You have a number of ink charges equal to your character level + CON modifier (minimum 1), and may spend a number of available charges equal to your level in a single action. Ink charges replenish on a long rest, as long as you are properly hydrated. 

Each charge expended results in an ink spot covering an area 5 ft. square, making it difficult terrain for non-inklings. Non-inklings who end their turn on an ink spot must succeed on a Dexterity saving throw against your Constitution save DC or fall prone. Creatures with a swim speed may move through the ink freely. The ink spots remain for one hour unless removed. 

The ink is water-based. It will dissolve if exposed to water, is subject to spells that affect water, and allows creatures who breathe water to breathe normally. However, being on an ink spot is not considered being underwater.

Inkling/Octoling (Splatoon 3) Traits

These are some fresh traits they have.