Ebony Tendrils

This spell summons a lump of blackness five feet in diameter with four 10-foot arms radiating from it, 90º apart. Touching the central lump causes death unless a successful saving throw vs. death is made. The arms attack with the same chance to hit as the priest casting the spell, inflicting 1d10+2 points of corrosive and constriction damage. Creatures struck have one chance to break free, which is the same as the chance to open a door. (If the chance to open doors is unknown, assume that smaller than man-sized creatures escape on the roll of a 1 on 1d6, man-sized creatures on a roll of 1 or 2 on 1d6, and larger than man-sized creatures on a I, 2, or 3 on 1d6).

The round after scoring a hit, an arm retracts into the central lump, dragging the creature in its grasp against the center and forcing a saving throw vs. death. Thereafter, the creature is held fast, and continues to suffer corrosion and constriction damage, but continued contact with the lump does not require additional saves vs. death. Broken arms retract into the central lump without making further attacks. Arms holding dead creatures continue to hold them until the spell duration expires.

The material components for this spell are Nerull's unholy symbol (the skull and scythe) and a small, rusty iron ball.