White Sun's Zeniths at level 0 give a very big regeneration.

[hatidotch]

White Sun's Zeniths(regeneration) at level 0 give an effect of amplifier value of -1.
If regeneration effect's amplifier was given outside the range 0–31, remainder when it is divided by 32 is apply.
In this case, amplifier value of -1 is equrl to 31.
Because white Sun's Zeniths at level 0 has media cost of 0, as a result player can get a very big regeneration effect with media cost of 0.

Sorry, I am not a native English speaker and this text may be ugly.

[object-Object]

What version of Hex Casting is this issue for? Do you know if this bug is still present in the 1.20.1 prereleases?

[Alchristis]

hexcasting-fabric-1.20.1-0.11.1-7-pre-609 AND hexcasting-forge-1.20.1-0.11.1-7-pre-609
Still present, same result as described in the original post, although I don't know the inner working- they're probably right though.
Just casting an any duration potency 0 regen will make you effectively immortal sans a one-hit kill for the duration

[hatidotch]

Sorry for the delay in replying.
I could see this bug in both 1.19.2 and 1.20.1.

[hatidotch]

I'm sorry. I'm sorry.
I closed this issue by mistake.