This spell is similar to the Charm Person spell. However, the affected creature will attack anyone he/she perceives as hostile without being commanded to. A successful Save vs. Spell negates the effect.
Dire Charm is limited in the same manner as Charm Person. The spell can affect any bipedal human, demihuman, or humanoid of man-size or smaller, such as dwarves, elves, gnolls, gnomes, goblins, half-elves, halflings, half-orcs, hobgoblins, humans, lizard men, orcs, troglodytes, and others. Thus, a 10th-level Fighter could be charmed, but an ogre could not.