Rakshasa, if you have never encountered them, are devious shapeshifters and thieves.

— Khan Zahraa

Rakshasas are powerful spirits in a humanoid tiger's body. All rakshasas are immune to either +2 or +3 weapons or less and are completely immune to all spells lower than 8th level. The spells they use are usually levels 1-6. They drop non-magical swords when killed.  Rakshasas are numerous in Suldanessellar - they may disturb your rest there. One called Ihtafeer is in the lodge in the Druid Grove, and one is a magical clothes vendor in the Black Pits I named Elan Garaq.