The King of the Swamp Pact

Deep within the fog-choked marshlands dwells the King of the Swamp — an ancient, toadlike entity whose skin glimmers with veins of gold and whose belly churns with the weight of centuries of greed. Legends say he was once a mortal who drowned in his own lust for wealth, reborn by the swamp’s will as a god of decay and desire.

Those who form a pact with the King of the Swamp are lured by promises of riches, influence, and secrets buried beneath the muck. But the swamp’s gifts always come at a cost — gold tarnishes, treasures rot, and the more you gain, the deeper you sink.

Your patron grants you dominion over decay, illusion, and the allure of greed. You can conjure shimmering coins that melt into venom, charm others with promises of wealth, or even call upon the swamp itself to consume your enemies in bubbling mire.

Warlocks of the King of the Swamp often bear golden markings across their skin, like veins of molten treasure. Their voices carry a wet echo, and when they cast spells, the faint croak of a toad lingers in the air.

The King of the Swamp 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.

Swamp's Boon

3rd Level Feature

You gain the ability to move through swampy terrain with ease. You ignore difficult terrain caused by mud, water, or vegetation.
Additionally, you gain resistance to poison damage and advantage on saving throws against being poisoned.

Your patron grants you a golden trinket shaped like a frog’s eye. While holding it, you can use your bonus action to sense the presence of nearby gold, treasure, or magic items within 30 feet (like Detect Magic focused on valuables).

Greedy Tonge

6th Level Feature

As a bonus action, you can lash out a spectral frog’s tongue up to 30 feet. Choose one of the following effects:

• Pull Object: You pull a Small or smaller unattended object made of metal or gold into your hand.

• Pull Creature: A creature of your size or smaller must succeed on a Strength saving throw against your spell save DC or be pulled up to 10 feet toward you and restrained until you let them go or they succeed on their saving throw.

• Once latched, you can use your bonus action to continue to pull the object or creature towards you

  You can use this feature several times equal to your Charisma modifier, regaining all expended uses after a long rest.

Golden Pact

The king of the Swamp gives you one of his precious familiars, a Golden Frog. 

When summoned, the Golden Frog demands an offering of at least 5 gp as tribute to the King of the Swamp. Upon receiving this tribute, it remains loyal and stays by your side until your next long rest, after which it returns to its patron to deliver your offering.

When you awaken from your long rest, the Golden Frog automatically returns to you — but only if the tribute has been properly given.
If you failed to pay tribute before resting, it does not return, and your connection to the King of the Swamp weakens. You lose the benefits of your Golden Frog Familiar and take disadvantage on Charisma (Deception) and (Persuasion) checks until you make a new offering of 25 gp or more to restore the King’s favor.

If the Golden Frog’s hit points are reduced to 0, its body bursts into foul slime as the King’s voice booms in your mind. You are immediately cursed with guilt and shame — to atone, 10 gp is drained directly from your wealth (or from the nearest ally’s gold if you have none). If no gold is available, you suffer 1d10 necrotic damage instead as the King exacts his payment in blood for letting one of his precious familiars perish.

Gilded Guardian

10th Level Feature

You exude the greed and resilience of your patron. You gain the following benefits:

• You gain resistance to acid damage.

• You cannot be charmed or frightened while you have at least 1 gold coin on your person.

• Once per long rest, when you take damage that would reduce you to 0 HP, you can instead drop to 1 HP and expend 25 gp — the coins burst into a flash of golden light, shielding you.

  • Creatures within 10 feet of you must make a Constitution saving throw against your Spell save DC. On a failed save, they will be blinded as the flash of golden light burns their eyes, taking radiant damage equal to your proficiency bonus. On a success, they will have a disadvantage on their next attack action and take only half the damage.

Avatar of the Swamp King

14th Level Feature

You can temporarily embody the King of the Swamp. As an action, you transform for 1 minute, gaining the following benefits:

• You grow to a Large size and sprout a frog-like maw.

• You gain temporary hit points equal to twice your warlock level.

• You can make a melee spell attack (your “Frog Bite”) as an action:
  +Your Spell Attack modifier to hit, 2d10 + Cha acid damage.

• You can jump up to 30 feet without provoking opportunity attacks.

• You can still cast spells while in this form.

• Any creature that dies within 10 feet of you turns into gold dust worth 5 gp.

You can use this feature once per long rest.