Parasitic Patron

From the Far flung corners of Wildspace, their are creatures beyond mortal comprehension, these creatures make deal with those that crave forbidden knowledge or unspeakable power. Warlocks of the Parasitic Patron gain a relationship with a essence of their patron called a Core Parasite that feeds off the Warlocks magic in exchange for powers over others and themselves. Warlocks of the Parasitic Patrons tend to rule armadas of spelljammers to fulfill their Patrons needs and often at the expense of others.

Core Bond

You gain a bond with a essence of your patron called a Core Worm, this Core Worm functions as a familiar except only you can see and interact with it and it is unable to be more than 5ft away from you. At higher levels you can expend spell slots for unique effects depending on the level of spell.

Eldritch Powers

You can donate one of your spell slots to your patron through your core worm to give you a certain effect. The higher the spell slot, the more powerful the effect. If a effect requires a saving throw, it is equivalent to your spellcasting DC.

1st level or higher Spell Slot Effects

Warped Summon: You call on the power of your patron to summon aliens from across worlds. Expending a spell slot you can summon a number of aberrations equal to the spell level that you have seen before, the summons disappear after 2 minutes or until their dismissed and act on your initiative, you can give mental commands to them which they follow to the best of their ability. You can use this power till the total amount of creatures you have summoned is 10, after this you must take a long rest before your able to use the effect again

Eldritch Armor: You surround yourself in Cosmic energy. Expending a spell slot you give yourself or an ally within 5ft of you temporary hit points equal to four times the spell slot level, these temporary hit points do not stack with each other but do stack with other forms of temporary hit points

Alien Anatomy: You can alter how your body moves and works. Expending a spell slot, you gain a climbing, hovering, or swimming speed equal to your base walking speed for 1d8 plus your spell slot level minutes, you also have advantage on constitution saving throws for the entire period

2nd Level or higher Spell Slot Effects

Fractured Strikes: You grow spike like appendages from your wrist and hands. Expending a 2nd level spells slot or higher, you give yourself advantage on unarmed strikes, deal extra damage equal to double your spell slot level, and your reach increases by 5ft for one minute

Explosive Augmentation: You overburden a creature with Eldritch Powers. Expending a 2nd level spell slot or higher you make a melee attack against one creature, that creature must make a Charisma saving throw, on a failure they become overburdened for one minute. If the creature reaches 0 hit points while overburdened, each creature within 10ft of the creature must make a Dexterity saving throw taking force damage equal to thrice the spell slot level, or half as much on a success

Morph: Your Patron allows your body to have the fluidity of space. Expending a 2nd level spell slot or higher you can transform into an aberration or monstrosity with a CR equal to half your Warlock level for 1 hour, or until you reach 0 hit points which then you revert back to your true form with the same amount of hit points you had before you morphed. You replace your strength and dexterity stats with the monster, but you retain your intelligence, Wisdom, and Charisma stats. You can dismiss the form as an bonus action

3rd level or higher Spell slots effects 

Void's Hunger: You open a small impassable gateway to between the stars. Expending a 3rd level spell slot or higher, you choose a point that you can see within 60ft of you, originating from that point is a 15ft field that counts as difficult terrain that lasts for one minute. Any creature that starts it's turn in the field takes necrotic damage equal to your Warlock level plus twice your spell slot level, and the creature must also make a DC strength check or be pulled up to 10ft toward the center of the field

Asteroid Armor: You allow your skin to become as hard as an asteroid taking on it's physical attributes. Expending a third level or higher Spell Slot, for 10 minutes you have resistance to up to a number of damage types equal to the spell slot level, the option of resistances do not include psychic and force damage. You also have advantage on strength and constitution checks and saving throws

Disruptive Dissonance: Using visions bestowed by your patron, you can bombard a creature with distracting and Ill fated visions. Expending a 3rd level or higher Spell Slot you can cause up to 5 creatures you can see to make wisdom saving throws. On a fail, the creature is stunned and has disadvantage on all saving throws and checks for one minute

4th level or higher Spell Slot Effects

Parasitic Growth:You can cause your Core Worm to drastically enlarge itself and becomes visible to all for one minute, it still stays at least within 5ft of you but it can now attack, it's attack modifier is equal to your spell attack modifier and it deals damage equal to 1 and a half times your level, it acts on your initiative and under your command

Mass Illusion: Channeling the power of thought and mind you can befuddled even the most headstrong of foes. Expending a 4th level or higher Spell Slot you can choose up to 10 creatures, you can then cast any illusion spell of a level you can cast that affects only one creature at a time on all ten of them, even if it's not in your spell list

5th level or higher spell slot effects

Touch of the Starstruck:You can extend the powers granted by your Core Worm to others. Expending a 5th level or higher spell slot you can give up to two other cantrips and 1st level spell slots equivalent to yours for one minute, they use their own DC saves and spell attack modifiers, if your allies can already cast spells they do not follow multiclass rules and have two separate sets of spell slots. 

Starry Gaze: You can see visions of what will happen in the immediate future from the stars. Expending a 5th level or higher spells slot, for one minute any creature that attempts to attack has disadvantage and has a minus equal to your charisma modifier, you also have advantage on dexterity saving throws 

Wish of the Parasite: You unleash the parasite from it's bonds and allow it to grow to it's full size. Expending a 5th level spell slot or higher, for 10 minutes the Core Worm grows and has the stats of a Neolithid except it's hit point maximum is halved, it's size is huge, it's intelligence is 15, and any damage it would normally deal is halved, the Core Worm acts on your initiative, follows your mental  commands, and the maximum distance it can be away from you is 120ft.

Speech of the Mind

Your brain is overburdened with knowledge and power gifted by your patron allowing you to convey ideas and words through mere thought. Starting at 1st level you have telepathy out to a range of 30ft.

 

The range increases to 60ft at 6th level, and 120ft at 12th, in addition at 12th level you can cast command once as if it was a warlock spell using your telepathy. The effect recharges every long rest.

WildSpace's Current

After having a bond with your core worm for so long has left you a odd physiology. Starting at 6th level you can cast reverse gravity without Expending a spell slot, you also don't need to be able to cast it, however the range is halved and lasts for half the duration. 

 

You can use this once per long rest. At 14th level you can remove one of the restrictions from the spell, picking from; the time restraint, or the range restraint

Symbiotic Health

Your bond with your Core Worm has allowed a symbiotic relationship to form. Starting at 10th level you have immunity to poison and the poison condition, you also can't contract diseases.

Eldritch Adaptation

Your bond has reached high levels of synergy allowing you to deflect physical and mental blows. At 14th level you have resistance to slashing and piercing damage from nonmagical weapons, in addition you cannot be charmed or frightened.