Spider Form

(Drow of the Underdark)

Transmutation (Polymorph)
Level: Sorcerer 3, Wizard 3,
Components: V, S,
Casting Time: 1 Swift Action
Range: Person
Target: You
Duration: 1 round/level (D)

Your body bloats and writhes until eight massive spider legs burst through your flesh. As the transformation finishes, your skin hardens into a dark exoskeleton.

As lesser spider form, except you take on the form and abilities of a Large fiendish monstrous spider (MM 289). You are treated as having the spider's Hit Dice (4) for the purpose of adjudicating the special abilities gained from the fiendish template.