For the Toril people, what truly makes them fear the Undead Tribe is the charge of their Knights.
The attacks from the magic-based professions are indeed terrifying, but... as long as the Toril people live long enough, they've even witnessed the might of deities. No matter how powerful or vast the spell, they can handle it.
It's only the Knights riding magical steeds, surging like a torrent, that can always make their hearts skip a beat.
That kind of momentum, where they never look back and nothing in front can stop their steps, leaves the Toril people, who always prioritize self-preservation, breathless every time they see it.
Even knowing the reason the Undead Tribe can do this is due to being undead, their fearless expression even when faced with blades makes one feel the terror of these Otherworld elves.
Perhaps, in any world, what's most terrifying is that kind of death-defying madness.
The Lich in the Bone Tower feels the same.
