If you are lucky to be a mage with decent gears you CAN sleep most of these UNMs and run away. I know for a fact Immanobugard and Beist sleep really well.
Until little Tyche gets chewed on by efts!
Kidding, of course. :D
Ninja edit: Verda, if you were in Coeurl camp, that was probably Voso, who really likes to CW unsuspecting ninja to death while said ninja waits for the paladin to get their happy *** back to Escha. Pretty sure I took about 600 more than my maximum in one electrical, shiny, death-dealing burst,
Actual information: I've fought the white Harpeia, who seemed ridiculously easy. Standard harpeia TP moves, casts Foil (?!) and Haste 2. Never saw Keraunos Quill, but I was RNG for this and stayed safely out of her range. She dropped MNK/SAM/NIN hat, I forget the name because I lost the lot (lol).
Savage Blade seemed to white proc her, she's also kinda vulnerable to dark SC.
Next we popped what we THOUGHT was going to be the orobon (That's not an orobon, Corian...) and ended up being a rafflesia. We'd lost a party member and were expecting Mayhem Lantern shenanigans, so we'd summoned up Amchuchu to hopefully keep enmity and eat charm.
Fooled us... this Hyosyca clone pops out to everyone's surprise.
It did indeed charm, though, and Amchuchu resisted, only to get taken down by the melee Corsair and the thief. Uses Full Bloom as well on charmed folks, so treat this guy like Yorcia Delve version. It died fairly quickly to our party of RNG COR WHM PLD THF, dropping some eschalixir +1 and a Rawhide Mask (which I remember because I did get it).
Escalating silt costs on tribulens suuuucks.