The All-Consuming Aberration

Your patron is a massive entity which is entirely alien in appearance. These beings know one goal and one goal alone: Consumption. It wanders through its plane of origin continually eating unfortunate creatures which find themselves in its path, amassing more power with each new entity introduced to its amoeboid form. After growing in strength and ability from centuries of devastation, it now seeks to contact beings from other planes and exert its influence over them. One day they too will be part of the greater collective of beings, but first, the  must consume. They must eat and eat and eat and eat until they too have grown in power and nothing remains. 

You are tasked with transfixing and consuming living matter and are promised unquestionable power in return. 

 

Expanded Spell List

1st Level: Sleep, Entangle

2nd Level: Enlarge/Reduce, Calm Emotions

3rd Level: Protection from Energy, Slow

4th Level: Confusion, Evard's Black Tentacles

5th Level: Dominate Person, Hold Monster

 

Unsettling Smile

Your patron warps your mouth and teeth into an unnatural form, filled with sharp teeth and able to unhinge and stretch to beyond its normal size. At 1st level, you can now use your teeth as a natural weapon, granting you access to a Bite attack as an Action on your turn, adding your strength modifier and proficiency to the attack roll and your strength modifier to the damage. The damage die for your Bite is 1d6 piercing damage. The damage increases to 2d6 at 6th level, 3d6 at 10th level, and 4d6 at 14th level. 

When you use the Bite action on your turn against a creature which is charmed by you or incapacitated, you gain temporary hit points equal to the damage dealt. The temporary hit points gained this way cannot exceed twice your warlock level. You cannot gain temporary hit points in this way from undead, constructs, elementals, oozes, or plants. You cannot gain temporary hit points in this way if the target creature's flesh has been cooked or transformed or if the creature has been dead for more than a day. 

Note: The Bite action granted by this feature is its own action and cannot be used as part of your Attack action. 

Bubbling Flesh

You have learned from your patron how to meld your flesh to your advantage. Starting at 6th level, using your Action on your turn, you can transform your flesh into an ameoboidic form. While in this form, you have advantage on saving throws against being Shoved or Grappled by another creature and you cannot be knocked prone. Also while in this form, you have disadvantage on Persuasion and Deception skill checks.

Absorbance

Starting at 10th level, when you kill a creature using the damage from your Bite action, if the creature is your current size or smaller, you can elect to absorb the creature's flesh into your being rather than gain temporary hit points. If you do so, you may benefit from one of the following effects:

• Heightened Stamina: You gain +10 speed and can use the Dash action as a bonus action on your turn.
• Amassed Flesh: Your size and weight doubles and your Strength score increases by 2 (maximum of 20).
• Extra Mouthes: While using the Bubbling Flesh feature, you can make up to three attacks as part of your Bite action on your turn. 
• Extra Eyes: While using the Bubbling Flesh feature, you have advantage on Perception and Investigation skill checks which rely on sight.

The effect lasts until you finish a long rest. You can only have one active effect at a time. 

Unrestricted Hunger

Starting at 14th level, using your Action on your turn you can expend a number of your Warlock Hit Dice to transform into a fleshy aberration. While transformed, you use the stat block for a Gibbering Mouther (Monster Manual page 157) with the following changes:

• Your Strength, Intelligence, and Charisma modifiers remain the same as before you transformed
• Your Hit Points are determined by rolling the expended Hit Dice and adding any temporary hit points you had prior to the transformation to the total. 
• When you kill a creature using the Bites action and absorb it, you gain additional hit points equal to the damage done. 
• You add your charisma modifier to all save DCs specified as part of the Gibbering Mouther's abilities.

While transformed, any and all non-magical equipment is considered to transform with you, and you cannot take any actions outside of that which is specified in the stat block. 

You can remain transformed for up to 10 minutes. The transformation can be ended early if you are knocked unconscious, reduced to 0 hit points in the Gibbering Mouther form, or end the effect early using your action on your turn. When you revert to normal, you retain any hit points you had prior to the transformation, but your temporary hit points are lost. 

Once you use this feature, you must complete a long rest before you can use it again.