Evard's Black Tentacles (Thaumaturgy)
Level: Mage 4, Bard 4, Alienist 4, Blackguard 5
Mana: 12. Base Success: 75%.
  This spell causes 1d4 tentacles, plus one per caster level, to grow out of the nearby stone, earth, wood or any other surface and lash out mindlessly to entangle whatever might be nearby. The tentacles have Strength 18, Dexterity 18, 3 hit dice, a +3 base attack bonus and are DC 13 with +5 natural armour. The tentacles cannot move from the spot they first appear, which will be within 50 feet of the spell's chosen point of origin.
   The tentacles are not summoned creatures -- they are grown by thaumaturgic means out of nothing -- and are unaffected by spells and powers which affect summoned beings. Further, they are not subservient to the caster, attacking him as casually as anyone else who comes within their reach. Fortunately, no tentacles will grow in the squares directly surronding the caster.
   If the spell is cast is a very constricted area such as a corridor, less than the normal number of tentacles may appear.