Hi Team EOB / Menzoberranzan!

I am currently in the Dwarven Mines section of the game, facing off against derro dwarves. I am noticing that a single Melf's Acid Arrow is usually enough to destroy a derro dwarf in combat multiple casts of Fireball does not seem to do anything against them.

What is going on here?

I can't really find solid information about 2nd Edition Derro dwarves, other than them having a 30% magic resistance and also often carrying rings of fire resistance.

It can also happen that your fireballs might hit something else before hitting a dwarf, like a chair, table, or side of a wall, especially in non-step mode.
I love this game, but things can get a bit janky.