Homebrew Sentient Slime Species Details

Adaptable. While not transformed, you are immune to the blinded, deafened, and prone conditions. You also don't need to breathe.

Age. Slimes do not age, but will shrink and can eventually die from starvation.

Alignment Sentient Slimes usually act on a whim, and rarely care about good and evil. Because of this, most slimes tend to be neutral.

Blindsight. While not transformed, you have blindsight up to 60 ft away, and are blind beyond this radius.

Ooze. Your creature type is ooze, rather than humanoid. You can speak, read, and write common and 1 other language of your choice. Your body shape and composition is similar to a droplet of thick gelatin and doesn't possess limbs / can't wear armor.

Transform. Slimes can choose to digest any organic matter that comes into contact with their acidic semi-solid body in 1 minute, dealing 2d6 acid damage if the slime stays in contact with the matter being digested. Consuming any part of a creature provides a transformation for the slime (detailed below).

After consuming part of a beast, you can use an action to transform into the beast if their CR is less than half of your level (rounded down). Your game statistics, not including mental ability scores, are replaced by the statistics of the creature. You also retain your alignment, personality traits, current hit points, and maximum hit points.

If you transform into a humanoid, you only mimic their appearance, movement speed, and vision while retaining the rest of your original game statistics. You're limited in the actions you can perform by the nature of your new form, with the transformation lasting until you willingly end it as an action, drop to 0 hit points, or die. You can only transform into the three most recent creatures you've consumed, and can save them at any time, preventing the forms from being overwritten by future creature consumption for as long as you'd like.

Sentient Slime Traits

Slimes are some of the weakest monsters known to any region. They're typically thoughtless creatures that only absorb, split, and regenerate. However, some slimes are unordinarily smart, and a small subsection of their race is composed of sentient ooze.

Ability Scores

Con +2; Int +1

Adaptable

While not transformed, you are immune to the blinded, deafened, and prone conditions. You also don't need to breathe.

Blindsight.

While not transformed, you have blindsight up to 60 ft away, and are blind beyond this radius.

Ooze

Your creature type is ooze, rather than humanoid. You can speak, read, and write common and 1 other language of your choice. Your body shape and composition is similar to a droplet of thick gelatin and doesn't possess limbs / can't wear armor

Transform

Slimes can choose to digest any organic matter that comes into contact with their acidic semi-solid body in 1 minute, dealing 2d6 acid damage if the slime stays in contact with the matter being digested. Consuming any part of a creature provides a transformation for the slime (detailed below).

After consuming part of a beast, you can use an action to transform into the beast if their CR is less than half of your level (rounded down). Your game statistics, not including mental ability scores, are replaced by the statistics of the creature. You also retain your alignment, personality traits, current hit points, and maximum hit points.

If you transform into a humanoid, you only mimic their appearance, movement speed, and vision while retaining the rest of your original game statistics. You're limited in the actions you can perform by the nature of your new form, with the transformation lasting until you willingly end it as an action, drop to 0 hit points, or die. You can only transform into the three most recent creatures you've consumed, and can save them at any time, preventing the forms from being overwritten by future creature consumption for as long as you'd like.