Devils

Really nasty foes. Devils are from the legions of hell, a different stock than Daemons, armed with a trident and horrible battle magics. These hell-spawns love it to paralyse their enemies, before slowly killing them. However, Magical Repellants can protect against these foul magics, forcing the Devil to attack his enemy directly. And even then, only very experienced and skilled warriors can defeat an Devil in battle.

Despite being met mostly underground, Devils can appear everywhere at every time.

Lore
With trident in hand, the devil can quickly spell your demise, although defense is possible if you have the correct item in your inventory.

- from "The Second Age of Darkness", Ultima II

''It thou attempts to overcome these mightly warriors of the Dark, then thou hadst best be protected by all means possible. Anything less will mean thy instant destruction. These archfoes are so filled with evil, that they can hurl poisoned magic bolts from across the arena. The slightest hit may poison thy character and sap their vitality.''

- from "The Book of Play", Ultima III

''These flying Lieutenants of Evil may sweep off-shore and chase thee across the waves. They are powerful magic users and should be avoided at all costs. Devils are particularly fond of torturing their victims when the opportunity arises.

- from "The History of Britannia", Ultima IV