Lord Istharan

Type: Aberration (List)

Race: Mind Flayer (List)

Monster Manual classification: Mind Flayer

Alignment: Lawful Evil

Boss: Red Named - Quest Boss

CR:  ♠23Elite

Attack: 

• Egowhip (Charisma damage, will save for half)
• Tentacle whip (Bludgeoning damage)
• Spellcasting (Save DC 13 + spell level + mind flayers charisma bonus)
  • Mind Blast - stun effect
  • Mind Thrust - force damage, will save negates
  • Extract Brain - instakill, can only be used if the target is already stunned
  • Hold Monster
  • Dominate Monster
  • Lightning Bolt
    

Special Qualities: DR  ♠15Elite/Byeshk

Habitat: 

• The Twilight Forge — Final boss

Dialogue

• Istharan: The mind flayer's hideous voice blasts your mind: THE TWILIGHT FORGE IS OURS. THE TITAN AWAKENS FROM ITS SLUMBER. SOON ALL EBERRON WILL BOW TO OUR POWER!
  • You: 'We have slaughtered your slaves and destroyed your fellow Illithids. Slink back to Khyber, you abomination!' (Begin battle).
• Istharan: 'I will feast on your feeble mind!'