Il'Isk'aeurr: Male fiendish kaorti thrall mind flayer Sorcerer 11; CR 21; Medium aberration (extraplanar); HD 8d8+24 plus 11d4+33; hp 120; Init +8; Spd 30 ft.; AC 17, touch 14, flat-footed 13; Base Atk +11; Grp +11; Atk +15 melee (1d4, tentacle); Full Atk +15 melee (1d4, 4 tentacles); SA extract, improved grab, mind blast, psionics, smite good; SQ cold resistance 10, damage reduction 10/magic, darkvision 60 ft., fire resistance 10, spell resistance 25, telepathy 100 ft.; AL LE; SV Fort +8, Ref +9, Will +17; Str 10, Dex 18, Con 16, Int 18, Wis 18, Cha 24.
Skills and Feats: Appraise +6, Bluff +16, Concentration +24, Craft (metalworking) +13, Diplomacy +13, Hide +13, Intimidate +15, Knowledge (arcana) +12, Knowledge (arcana) +20, Knowledge (the planes) +6, Listen +15, Move Silently +12, Sense Motive +8, Spellcraft +13, Spot +15; Alertness, Combat Casting, Dodge, Eschew Materials, Improved Initiative, Mobility, Weapon Finesse.
Extract (Ex): If Il'lsk'aeurr begins his turn with all four tentacles attached and makes a successful grapple check, he automatically extracts the opponent's brain, instantly killing the creature. This power is useless against constructs, elementals, oozes, plants, and undead. It is not instantly fatal to foes with multiple heads such as ettins and hydras.
Improved Grab (Ex): Il'Isk'aeurr must hit a Small, Medium, or Large creature with its tentacle attack. He can then attempt to start a grapple as a free action without provoking an attack of opportunity. If he wins the grapple check, he establishes a hold and attaches the tentacle to the opponent's head. Il'lsk'aeurr can grab a Huge or larger creature, but only if he can somehow reach the foe's head. If he begins his turn with at least one tentacle attached, he can try to attach his remaining tentacles with a single grapple check. The opponent can escape with a single successful grapple check or an Escape Artist check, but Il'lsk'aeurr gets a +2 circumstance bonus for every tentacle that was attached at the beginning of the opponent's turn.
Mind Blast (Sp): This psionic attack is a cone 60 feet long. Anyone caught within this cone must succeed at a Will save (DC 21) or be stunned for 3d4 rounds.
Psionics (Sp): At will -- charm monster (DC 21), detect thoughts (DC 19), levitate, planeshift, suggestion (DC 20) Effective caster level 8th. The save DCs are Charisma-based.
Smite Good (Su): Once per day, Il'lsk'aeurr can make a normal melee attack to deal +19 points of extra damage.
Sorcerer Spells Known (6/8/8/8/7/5; save DC 17 + spell level): 0 -- arcane mark, daze, detect magic, disrupt undead, flare, ghost sound, mage hand, read magic, resistance; 1st -- mage armor, magic missile, ray of enfeeblement, sleep, true strike; 2nd -- glitterdust, minor image, resist energy, scorching ray, see invisibility; 3rd -- dispel magic, fireball, fly, tongues; 4th -- greater invisibility, ice storm, stoneskin; 5th -- cloudkill, feeblemind.