Gargantuan Magical Beast
At home on the Positive Energy Plane, the crystal screamer is built to stand up to the other creatures that compete with its parasitic feeding on preincarnate souls.
A crystal screamer resembles a fluid crystal worm some 40 feet in length. It senses sound and movement with a single hornlike protrusion on its crystal head. This same horn emits powerfully focused beams of sound.
They use their sonic ray to destroy a swath of 5-6 crystal trees simultaneously, and then absorb the drifting soul lights that remain at their leisure.
Despite their intelligence, crystal screamers do not speak.
A crystal screamer alternates between its sonic attack and devastating bite.
Sonic Scream (Su): Every 2 rounds, a crystal screamer can focus sonic energy in a ray up to 60 feet long. This is a ranged touch attack that deals 18d6 points of damage to a single target. If it so chooses, it can instead scream at a crystal tree (or the ground, if not in the Bastion of Unborn Souls) to create an explosion of shattered crystal. This attack deals 9d6 points of piercing damage to all within 10 feet of the effect's center and destroys all the crystal trees in the same radius, regardless of their hardness and hit points.
Burrow (Su): By creating a special audible resonance, crystal screamers can burrow through the substance of the Bastion of Unborn Souls (solidified positive energy). They do not leave holes behind, so other creatures cannot follow them. This ability does not allow them to actually leave (or enter) the mystically sealed Bastion, only burrow within its confines.
Immunities (Ex): Crystal screamers are immune to sonic attacks and effects. If a sonic attack that deals damage is directed at a crystal screamer, the attack is reflected back at the originator, its damage potential doubled.
A crystal screamer whose sense of hearing is impaired is effectively blinded and treats all targets as having total concealment (see Chapter 8 of the Player's Handbook).
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