Fireborn

Fireborn can wear 4 rings and 2 amulets instead of only 2 rings and 1 amulet as the other characters.
When choosing a god, remember that the fireborn can neither wear weapons nor armor.

Make sure you throw dice until you get high INT and POW.
When choosing class, make sure you note benefits of Evoker and Monk.
Use the crystal from the very beginning; it makes you able to kill foes stronger than yourself.
Avoid direct contact with your enemies.
Take full advantage of the fact that your character is fire and poison resistant.
Physical weakness is the most annoying drawback with fireborns; counter that by learning summoning spells, dancing sword or similar spells that enable you to break doors etc.
On higher levels, elementals can be your best friends - they may enable you to kill dangerous foes from a safe place.