The Living Plague

Your pact has been made with a conscious disease, a creature with the power to bend the health of body and mind. All living plagues strive for change in the world order, whether it be extinction of the human race, or sickness annihilating the crops of a civilization. Many throughout the decades have been more widely known, or even worshiped, such as Golfath, King of the Locusts, Uria, Scourge of the Sun, and Aria, Goddess of Sickness.

 

Expanded Spell List

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

Spell Level	Spells
1st	create or destroy water, detect poison and disease
2nd	blur, dust devil
3rd	bestow curse, revivify
4th	confusion, giant insect
5th	contagion, modify memory

Manifestation

Starting at 1st level, you gain the ability to pull the physical matter of the plague out of your body to manipulate your appearance or create weapons. As an action, activate one of the following effects.

• Plague Weapon - You create a weapon from your body made of the malevolent spirit of disease that lives inside your body. Using your action, you create a melee weapon. You can choose the form this weapon takes each time you create it. You are proficient with this weapon while you wield it. Due to the nature of your patron, when you hit an attack with your plague weapon, it deals an additional 1d4 necrotic damage. If you have the Pact of the Blade feature, you may treat this weapon as if it were your pact weapon. This weapon disappears when it is 5 feet or more away from your body, if you dismiss this effect, or if you die.
• Plague Appearance - Your body is covered in a dark aura that radiates a feeling of disease and negative energy. If you are not proficient in intimidation, you become proficient in it until you dismiss this ability. If you are, double your proficiency bonus for intimidation checks you make until the you dismiss this ability

You may dismiss these effects at any time (no action required). You may only have one effect active at a time.

Corrupting Breath

Starting at 6th level, as an action, you can breath toxins into the air around you. A cloud of poisonous gas covers a 30-foot sphere surrounding you, creating highly obscured terrain that spreads around corners. Any creature besides you that enters or starts its turn in this area takes 3d6 damage. This cloud dissipates after 3 minutes. 

Once you use this feature, you can't use it again until you finish a short or long rest.

Soul of the Host

Starting at 10th level, you gain the ability to live normally in conditions that most people would not. You have resistance to poison damage and immunity to the poisoned condition. You also no longer have to drink water, as you absorb fresh water from the air around you when it is necessary.

Swarm Body

Starting at 14th level, you gain the ability to release swarms of insects when attacked. When you are hit with a melee attack, you can use your reaction to let off a swarm of locusts that emerge from your mouth and eyes, dealing 4d10 damage to the creature that attacked you. The target must also succeed a Constitution saving throw with DC equal to your spell save DC, or become poisoned for 1 minute.

You may use this feature a number of times equal to your Charisma modifier (minimum of 1). You regain all expended uses after taking a long rest.