I love how simplistic the Withered origin currently is, but I feel that it could use a bit more spice in order to make it more unique,

Idea:
Pros
Give it permanent fire resistance (as withers and wither skeletons have)
Have ability to shoot wither skulls

OR

Give it a primary ability which has a 5 minute cooldown (can be changed) and when you activate it you slowly wither away, but you gain the ability to hover as the wither can, and shoot wither skulls with a short cooldown (5 secondish) This form can last until you are half a heart, but it can only last for up to 1 minute, to prevent it from being too op combined with healing items such as regen potions or gapples

Cons:
Piglin Problems
Piglins will refuse to barter with you

Sword Supremacy
You do less damage with bows/crossbows or you cant use bows (since wither skeletons cannot use bows)
You also do less damage with Axes and Tridents because you are used to wielding a sword

Brittle Bones
You take 1.2% more damage from fall damage

Neutral:
All potion effects are inverted

Thank you for reading!

I think I'll respond to this by saying what would these pros and cons contribute to the gameplay of the origin?

Not to mention that fire immunity would be invalidating of Blazeborn. Hovering is invalidating of Swarm if implemented in the same way whilst flight has to be placed on an origin extremely cautiously.

WIther Skull shooting from what I've heard is laggy and it's just overdone. There's a huge reason Dragonborn doesn't have unmodified Ender Dragon fireballs and that's similar to this.

For the downsides, what would they add to the experience?
Piglin trading - This locks out one feature in the nether from you, which just doesn't sound good for what should be a nether based origin.

Sword Supremacy - I'm not a fan of these types of downsides with certain origins, changes that force you into something, it's actually my current issue with Undead atm.

Brittle Bones - While you could add this if you had the hover you mentioned, it'd be out of the blue to add something like this to current Withered. You could say it'd be slapped on for the sake of balance.

Neutral/Opposite Day - You're weak to Smite but I'd rather not invert potion effects on Withered personally, lorewise, the reason is Withered is a cursed human instead of an Undead. Gameplaywise there's little reason to do this outside of "flavour purposes"

I know you've responded in my rework thread (I think?) but that's my personal thoughts on it. Withered's new idea is "What's an alternate way of getting food in the nether?"