The Gelatinous

You have made a pact with an ooze, a creature that resembles an amorphous blob and mostly dwell in the depths of the Underdark. Be they a gelatinous cube, jelly, slime, or an oblex, they have exhibited a kind of intelligence and curiosity in you that is unusual for their kind. Pacts with such creatures do little to change your mind, but much to change your body. As such, day by day, the longer your pact holds with your patron, the more your body will change, taking on qualities that are seen so often in oozes, but almost never in creatures outside of their ilk.

Expanded Spell List

1st-level the Gelatinous Patron feature.

The Gelatinous lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Gelatinous Expanded Spells

SPELL LEVEL	SPELLS
1st	chromatic orb, Tasha’s hideous laughter
2nd	melf’s acid arrow, silence
3rd	freedom of movement, slow
4th	confusion, watery sphere
5th	antilife shell, Rary’s telepathic bond

Blindsight

1st-level the Gelatinous Patron feature.

Your bond with your patron has enhanced your senses beyond that of mere sight. You are able to perceive your surroundings without relying on sight within a radius equal to 5 feet x your proficiency bonus, and you become aware of any invisible creatures or items within that radius unless a creature successfully hides from you.

Hypermobile

1st-level the Gelatinous Patron feature.

You can squeeze through a space as narrow as 1ft wide provided you are not wearing any armor. You also gain advantage on ability checks you make to escape a grapple or the restrained conditions.

Non-Euclidean Body

6th-level the Gelatinous Patron feature.

When a creature makes physical attack against you, you can use your reaction to make your body non-Euclidean for one round. If the creature rolls above your armor class, you will take no damage. However, if the creature rolls below you armor class, you will take damage as normal. Once you have used this feature you cannot do so again until you have completed a short rest.

Sheer Thickening

10th-level the Gelatinous Patron feature.

Your body has become harder to pierce when a sharp force is applied, granting you resistance to piercing and slashing damage.

Acidic

14th-level the Gelatinous Patron feature.

As an action, you can choose to spit at a target of your choice, making a ranged attack of up to 10ft. If the attack hits a creature, the spit becomes acidic and begins to burn them, dealing a number of d10's equal to your Charisma modifier in acid damage.

Once you use this ability, you cannot use it again until you have recharged the ability, rolling a 5 or 6 on a d6 at the start of your turn.