Custom Potions

Fire burn and cauldron bubble...

Across the world of Keltarra you'll find many a strange and wonderous brew that cannot be found in your average hand guide (not to be confused with the list of Discount Potions).
Below is a list of some of the rare, unique, and even otherworldly potions that can be found, bought, and imbibed:

Potion of War

Market Price: 60 GP
Drinking time: 1 bonus action
When consumed, the potion causes the user to instantly fly into a Rage as if the user had taken a single level in Barbarian, regardless of their class(es).
If the user is already a lvl 1 or higher Barbarian, the potion will allow them 1 additional use of their normal rage ability. If they do not use it, the effect fades upon taking a long rest.

Bad Moon Rub

Market Price: 1,200 GP
Application time: 1 action
A salve made from the blossoms of a rare flower, the Fortunate Son.
When applied, it mimics the effects of the spell, Remove Curse. It's also the only way to remove the curse that afflicts those who enter the cave where Fortunate Sons are found.

Beetle Juice

Market Price: 200 GP
Drinking time: 1 action
Duration: 1 hour
A drink to make one seem undead.
Upon drinking the potion, the user's flesh becomes pale and and leprous. For the duration the user gains 5 temporary hit points, resistance to pain (not damage), and unintelligent undead ignore their presence if they don't draw undue attention to themself.
DM Note: This potion is cursed. Drinking more than 3 in 24 hours causes the user to begin hallucinating a white faced, green haired specter, dressed in black and white. The specter will constantly try to convince the drinker to die, either by their own hand or in battle.
The afflicted, will also have disadvantage on CON and WIS checks and saves.
The curse can be removed with either a Remove Curse or Minor Restoration spell.

Potion of Ant Strength

Market Price: 150 GP
Drinking time: 1 action Duration: 1 hour
Upon drinking this potion, the drinker's Strength score changes to 1d8+20 for the next hour.
The potion has no effect if the drinker's Strength is equal to or greater than that score.

Sticky Bug Soup

Market Price: 190 GP
Drinking time: 1 action Duration: 1 hour
Once the soup is ingested, and for the duration, the drinker gains the ability to move up, down, and across vertical surfaces and upside down along ceilings, while leaving their hands free. The drinker also gains a climbing speed equal to their walking speed.

Hive Honey

Market Price: 300 GP
Drinking/application time: 1 action Duration: 1 hour
An edible salve that acts as a cure for various status ailments.
When drank or applied topically, the user gains resistance to poison damage for 1 hour.
If the user is charmed, frightened, paralyzed, petrified, poisoned, or stunned when the honey is eaten or applied, they are instantly healed of those effects. The user then gains resistance to being charmed, frightened, paralyzed, petrified, poisoned, or stunned for the duration.

Royal Jelly

Market Price: 1,000 GP
Drinking time: 1 action Note: a standard jar only holds up to 12 spoonfuls
A thick jam-like substance that can bring someone back from the brink of death. When consumed, the user instantly gains 1d4+2 hit points per spoonful.
For every spoonful over 6 that a creature consumes (per long rest) they must make a CON save (DC 10+ the number of spoonfuls above 6 since their last long rest). If they fail, they fall Prone and are Incapacitated for 6 seconds or until the start of their next turn.