Fiend patron

A fiend patron was one possible sponsor for a warlock. If a bargain was made between a warlock and an archdevil, a demon lord, or some other member of the fiendish royalty, the warlock's patron gave them access to certain powers, including a suite of spells that expanded the choices to fill their spell slots.

Fiend patron expanded spells

 * 1st level : burning hands, command
 * 2nd level : blindness or deafness, scorching ray
 * 3rd level : fireball, stinking cloud
 * 4th level : fire shield, wall of fire
 * 5th level : flame strike, hallow