The polymorph other spell is a powerful magic which completely alters the form and ability, and possibly the personality and mentality, of the recipient. Of course, creatures with a lower intelligence cannot be polymorphed into something with a higher intelligence, but the reverse is possible. The creature polymorphed must make a “system shock” (cf. CONSTITUTION) roll to see if it survives the change. If it is successful, it then acquires all of the form and abilities of the creature it has been polymorphed into. There is a base 100% chance that this change will also change its personality and mentality into that of the creature whose form it now possesses. For each 1 point of intelligence of the creature polymorphed, subtract 5% from the base chance. Additionally, for every hit die of difference between the original form and the form it is changed into by the spell, the polymorphed creature must adjust the base chance percentage by +/-5% per hit die below or above its own number (or level in the case of characters). The chance for assumption of the personality and mentality of the new form must be checked daily until the change takes place. (Note that all creatures generally prefer their own form and will not willingly stand the risk of being subjected to this spell!) If a one hit die orc of 8 intelligence is polymorphed into a white dragon with 6 hit dice, for example, it is 85% (100% - [5% x 8 intelligence] + [[6 - 1) x 5%] = 85%) likely to actually become one in all but in any case it will have the dragon’s physical and mental s; and if it does not assume the personality and mentality of a white dragon, it will know what it formerly knew as well. Another example: an 8th level fighter successfully polymorphed into a blue dragon would know combat with weapons and be able to employ them with prehensile dragon forepaws if the fighter did not take on dragon personality and mentality. However, the new form of the polymorphed creature may be stronger than it looks, i.e. a mummy changed to a puppy dog would be very tough, or a brontosaurus changed to an ant would be impossible to squash merely from being stepped on by a small creature or even a man-sized one. The magic-user must use a dispel magic spell to change the polymorphed creature back to its original form, and this too requires a “system shock” saving throw. The material component of this spell is a caterpillar cocoon.