Polymorph is a powerful magic which completely alters the form and ability, and possibly the personality and mentality, of the recipient. Of course, while a creature with a lower Intelligence can be polymorphed into something with a higher Intelligence, it will not gain that creature's mental ability.
The reverse - polymorphing a higher Intelligence creature into one of significantly lower Intelligence - results in a creature much more intelligent than appearances would lead one to believe. The polymorphed creature must succeed on a CON check to see if it survives the change. After this, it must make a special INT check to see if it retains its personality (see following).
The polymorphed creature acquires the and physical abilities of the creature it has been polymorphed into, while retaining its own mind. Form includes natural Dodge bonuses (those due to skin toughness, but not due to quickness, magical nature, etc.), physical movement abilities (walking, swimming, flight with wings, but not phasing, blinking, teleporting, etc.), and attack routines (claw/claw/bite, swoop, rake, constriction, but not petrification, breath weapons, energy drain, etc.).
Hit Points, Ability Scores, and Skill ratings do not change from the original form. Noncorporeal forms cannot be assumed. Natural shapeshifters (lycanthropes, doppelgangers, etc.) are affected for but one segment, and can then resume their normal form.
If slain, the polymorphed creature reverts to its original form (it's still dead, though). (Note that most creatures generally prefer their own form and will not willingly stand the risk of being subjected to this spell!) As Soul Abilities and skills are not attributes of form, abilities derived from either cannot be gained by this spell, nor can exact ability scores be specified.
When the polymorph occurs, the creature's equipment, if any, melds into the new form (in particularly challenging campaigns, the Storyteller may allow protective devices to continue operating effectively). The creature retains its mental abilities, including spell use, assuming the new form allows completion of the proper verbal and somatic components. Creatures not used to a new form might be penalized at the Storyteller's option (e.g., rolling at Disadvantage to attack rolls) until they practice sufficiently to master it.
When the physical change occurs, there is a chance the subject's personality and mentality change into that of new form. For each 1 point of Intelligence of the subject, subtract 1 from the base chance on 1d20. Polymorphed creatures must make a POW check with the modifications on the chart below daily until the change takes place.
|Spell Duration||Modifier to POW Roll|
|1st & 2nd Day||-2 Roll Advantage|
|3rd & 4th Day||-1 Roll Advantage|
|5th & 6th Day||Normal POW roll|
|7th & 8th Day||+1 Roll Disadvantage|
|9th & 10th Day||+2 Roll Disadvantage|
A subject acquiring the mentality of the new form has effectively become the creature whose form was assumed and comes under the control of the Storyteller until recovered by a Wish spell or similar magic. Once this final change takes place, the creature acquires the new form's full range of Soul Point Abilities and Skills.
The spellcaster can change their form as often as desired for the duration of the spell, but each change requires a new CON check. The Occultist retains their own hit points, attack rolls, and Ability / Skill checks. The caster can end the spell at any time; when voluntarily returning to their own form and ending the spell, they regain 1d12 hit points. The caster also will return to his own form when slain or when the effect is dispelled, but no hit points are restored in these cases.
The caster can use a Dispel Magic spell to change the polymorphed creature back to its original form, and this requires a CON check. Those who have lost their individuality and are then converted back maintain the belief that they are actually the polymorphed creature and attempt to return to that form. Thus, a Gremlin who comes to believe he is a Draken, when converted back to his gremlin form, steadfastly maintains he is really a draken polymorphed into the shape of an gremlin. His companions will most likely consider him mad.