ce large aberration 

Perception +13; darkvision

Languages Elven, Undercommon

Skills Arcana +14, Athletics +12, Intimidation +14, Religion +13, Stealth +15

Str +4 Dex +3 Con +3 Int +2 Wis +3 Cha +4

Items +1 composite longbow (20 arrows), glaive

AC  24; Fort +13, Ref +13, Will +15; +1 status to all saves vs. magic

HP 95

Speed 30 feet, climb 20 feet

Melee [>] glaive +16 (deadly 1d8, forceful, reach 10 feet), Damage 1d8+10 slashing

Melee [>] fangs +16, Damage 1d6+10 piercing plus drider venom

Ranged [>] composite longbow +16 (deadly d10, magical, propulsive, range increment 100 feet, reload 0, volley 50 feet), Damage 1d8+8 piercing

Ranged [>] web +15 (range increment 30 feet), Effect web trap

Arcane Innate Spells DC 20; 4th clairvoyance, suggestion; 3rd clairaudience, dispel magic, levitate; 2nd darkness (at will), faerie fire (at will); Cantrips (3rd) dancing lights, detect magic

Arcane Prepared Spells DC 24, attack +17; 3rd fireball; 2nd acid arrow, invisibility; 1st magic missile (×2), ray of enfeeblement; Cantrips (3rd) ghost sound, mage hand, ray of frost

Drider Venom (poison) Saving Throw DC 23 Fortitude; Maximum Duration 6 rounds; Stage 1 1d8 poison damage and enfeebled 1 (1 round)

Web Trap A creature hit by a drider's web attack is immobilized and stuck to the nearest surface (Escape DC 21).

Bestiary, page 159. Expanded in LOIL.