Homebrew Gelatinous Cube Species Details

A sentient ooze that consumes all in its path...if you can wait a few days. These oozes share similar traits to their monstrous counterparts but are significantly smaller. They are experts at hiding in plain sight as long as they haven't eaten recently. Though they are slow moving and easy to hit they are quite resistant creatures.

These cubes have been known to live for a couple hundred years. They are solitary creatures that reproduce asexually though due to their long life spend they will only ever reproduce once every hundred years or so.

Though these cubes are sentient they are rather rare and often will spend their lives living in dark caves or sewers. Most cubes will sustain themselves on small mammals or fungi and will hide if they encounter another sentient being. 

At some point you consumed something that gives you the ability to communicate (note pad, letters, etc.).

Gelatinous Cube Traits

You have an assortment of traits similar to a other oozes.

Ability Score Increase

You have a -2 to DEX, +2 to CON, and +2 to another ability.

Natural Resistance

You are resistant to acid damage, and non magical bludgeoning damage.

Ooze Cube

You may be slow but you are easily carried. You may share a space with another creature, if that creature is a size larger than you then you can easily be carried and they remain unencumbered. If a creature that is carrying you gets hit you may use your reaction to cover them and take half of the damage, you can not do this if the attack would have also hit you.

Ooze senses

You have no eyes but you do have the ability to sense things within 60 ft of you, you are unable to see things that are further than 60 ft. Due to your lack of eyes you can not be blinded.

You have no ears but you can feel vibrations from sounds.

Transparent

Due to your transparent nature, you have advantage on stealth checks as long as you have not consumed anything recently.

Unarmed Attack

When you hit someone with an unarmed attack your pseudopod deals acid damage on a successful attack.

Languages

You have observed other creatures enough to learn Common and one other language of your choice.