I plan to use this creature as a half drow Blackguards fiendish servant.
Fiendish Monstrous Spider, Large
Large Magical Beast(Extraplanar)
HD: 4d8+4(22)
Speed: 30 ft. Climb 20 ft.
AC: 14(-1 size, +3 dex, +2 natural), touch 12, flat-footed 11
Base Attack/Grapple: +3/+9
Attack: Bite +4 Melee...