One thing that I can tell is that getting respawned underwater as a wight mage because of the twiceborn enchantment will lead to your inmidiate drowning.
Found this out when I was trying a weird idea, where I took a cheap voidlurker as pretender and teleported it on land to be respawned as a wight mage with mobility and full item slots. Next time I'll add some water magic to solve this little problem
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