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|This material is published under the OGL|
|Size/Type:||Medium Aberration (Shapechanger)|
|Hit Dice:||15d8+30 (97 hp)|
|Speed:||30 ft. (6 squares)|
|Armor Class:||17 (+2 Dex, +5 natural), touch 12, flat-footed 15|
|Attack:||Slam +12 melee (1d3+1)|
|Full Attack:||Slam +12 melee (1d3+1)|
|Space/Reach:||5 ft./5 ft.|
|Special Qualities:||Alternate form, amorphous, resilient, scent, telepathy 100 ft., tremorsense 60 ft.|
|Saves:||Fort +11, Ref +11, Will +11|
|Abilities:||Str 12, Dex 15, Con 15, Int 16, Wis 15, Cha 14|
|Skills:||Bluff +20, Climb +7, Craft (any one) +12, Diplomacy +12, Disguise +20 (+22 acting)*, Intimidate +4, Knowledge (any one) +18, Listen +12, Spot +12, Survival +8|
|Feats:||Alertness, Blind Fight, Combat Reflexes, Dodge, Improved Initiative, Mobility|
|Alignment:||Usually chaotic neutral|
|Advancement:||15–21 HD (Huge); 22–45 HD (Gargantuan)|
A phasm is an amorphous creature that can assume the guise of almost any other creature or object. A phasm in its natural form is about 5 feet in diameter and 2 feet high at the center. Swirls of color indicate sensory organs. In this form, a phasm slithers about like an ooze and can attack with a pseudopod. It weighs about 400 pounds.
Phasms can speak Common but prefer telepathic communication.
When faced with potential danger, a phasm is equally likely to retreat, parley, or attack, as its fancy strikes.
If pursued or harassed, a phasm transforms into the most fearsome creature it knows and attacks. When seriously hurt, it changes to some fast or agile form and tries to escape.
Amorphous (Ex): A phasm in its natural form has immunity to poison, sleep, paralysis, polymorph, and stunning effects. It is not subject to critical hits and, having no clear front or back, cannot be flanked.
Alternate Form (Su): A phasm can assume any form of Large size or smaller as a standard action.
This ability functions as a polymorph spell cast on itself (caster level 15th), except that the phasm does not regain hit points for changing form. A phasm can remain in its alternate form until it chooses to assume a new one or return to its natural form.