Hey.
See title.
Jaden of the Bloodborns in Saurian Barrow spawned, and had a Heavy Purple Crystal in it's inventory.
It decided to use it on itself to heal, it being undead, it got heavily damaged instead.
Maybe remove purple crystals from undead Heroes.
There's no real distinction in scripts between undead to not-undead heroes and they take the items from the same pool most likely.
The REAL fix is to make the items spawn on the heroes when they die instead of when they spawn so they don't use the hero loot on themselves (because it's lame not finding a cool reward after killing a hero spawn :( )...And this fix will happen SOON (though not 'next reset soon' but soon).