The piglin witch spawns in the Piglin Witch Cathedral, which is a common strucutre in the upper parts of the nether.
The strucure itself functions as an arena, containing the witch, it has several lava pools which the player must keep wary of.

The piglin witch uses several attacks and potions:

FLASK RAIN

When the player is within a certain close range of the witch, it will throw several combustive flasks into the air, making them rain down randomly around the witch. This attack can be negated if the player uses fire resistance, as the flasks will not damage entities with fire resistance.

METEORIC FALL

When the player is on the other side of the arena, or the witch is stuck in lava. It will use the meteoric fall attack. It affects itself with the Meteoric fall potion effect, and throws a propulsion potion at itself, midair it will launch itself towards the player aiming to land on top of its target, causing damage and knockback.

PUNCH

If the player is withing meleee range of the witch, it will attempt to punch the target away, trying to remain a certain distance from the target.

CROSSBOW SHOT

Its most common attack, the Piglin Witch uses COMBUSTION ARROWS, which speed up the farther away they fly, and explode on contact.

Upon death it drops Crimson Truffle Spores, which are a new type of nether crop. They can be planted on soul sand, their crop Crimson Truffles are used to brew every new type of potion related to the Pilgin Witch, they can also be used as food, or turned into stew.

Piglin Witch potions

- Porcine Potion

Used as a base for every next potion, brewed using a water bottle and Crimson Truffle.

- Blazing Trail Potion

A simple potion brewed using the porcine potion and a blaze rod, makes the affected leave a trail of fire.
Brewed using a porcine potion and blaze rod.

- Meteoric Fall Potion

A positive effect, makes the affected leave a fiery shockwave upon landing from a height greater than 1 block. The shockwave's size, damage and knockback scale with the falling distance.
Brewed using a procine potion and magma cream.

- Wart Spores Potion

A utility potion that prevents piglins from zombifying in the overworld. The effect can be made permenant by using an golden apple on an affected piglin, making them imune to zombification forever.
Brewed using a porcine potion and nether wart.

- Flame Propulsion Potion

A utility potion, doesnt last long, launches the affected entity into the air, can be used in combination with the meteoric fall potion.
Brewed using a porcine potion and firework star.

- Fiery Combustion Potion

This is the most dangerous potion in the collection. The first phase of the effect begins to function 30 seconds before it expires, the affected entity will release sizzle sounds in short intervals, as the time decreases the sizzles get faster and increase in pitch. The second phase starts at the last 10 seconds, indicated by flame particles that spawn at the entity's position, its movement speed gets increased the lower the time is. Once the effect expires the entity explodes, this scales with the entity's size.
Brewed using a porcine potion and fire charge.

- Crimson Truffle

A new food item for the nether, grown from Crimson Truffle Spores, dropped by the Piglin Witch.

- Crimson Truffle Stew

Used as a new food source in the nether, can be made with crimson truffles and a bowl.

- Combustion Arrow

A new type of arrow, the longer it's in the air the faster it flies, explodes 1.5 seconds after being shot, or when it hits an entity/the ground.

- Incendiary Flask

A projectile which can be thrown like a potion, damages and sets on fire entities hit, if it hits the ground it leaves a fire cloud which does the same thing but in an AOE.