Mystyk's Plane Survival
(Abjuration, Alteration)

Range:  0
Components:  V, S, M
Duration:  1 day per level
Casting Time:  1 hour
Area of Effect:  One creature touched per 5 levels
Saving Throw:  None

This spell provides the wizard with a means of surviving on a hostile plane of existence. In order for this spell to work, the wizard must have access to a library or other source of information on the plane in question. This information must then be studied for an extended length of time; this period is equal to: 24 weeks - 1 week per level of the wizard (to a minimum of one week). After this time has passed, the wizard is ready to cast the spell.
Each time this spell is cast for use on a new plane, the normal study time is required. If cast for use on a previously studied plane, and less than a week has passed since the last casting with respect to that plane, no additional studying is necessary as the information is still fresh in the wizard's mind; however, if more than a week has elapsed since the previous casting, a day of brushing up is required.
If the wizard is a sage with expertise in the plane in question, normal research times are required (see section on sages in the Dungeon Master's Guide) the first time this spell is cast for use on that plane. If cast again within two weeks, no additional time for studying is needed; if cast more than two weeks later, only 12 hours of brushing up is necessary. These times also apply if the wizard is obtaining this information from another sage.
Using the information gained from his studies, the wizard prepares the plane survival spell. After one hour has passed, the spell is complete; at this time, the DM secretly rolls percentile dice; a result of 5 or lower indicates the wizard has used erroneous information in the casting of the spell which will reduce the protection afforded by the spell, and may even cause it to fail altogether (the exact effects depend on the source of information and other factors, and it is left to the DM to decide the exact results). If some or all of the planar information was obtained by a sage who misdirected the wizard, the percentile roll has a -25% penalty applied to it. Even if correct information is obtained from a sage, a -5% penalty applies, since the wizard is using secondhand information. In any case, if the roll results in a 1, the spell fails altogether (although the wizard will not know this until attempting to make use of the spell's protection).
If the spell was successfully cast, it will grant the wizard (along with others, if the wizard's level is high enough) protection from the hostile environment of the studied plane of existence. The recipients may move about in the plane as if they were in the prime material plane; conditions that would make it hazardous or impossible to exist in the plane are negated by this spell. Spells have a chance of having normal effects while under the influence of the plane survival spell: when a spell is cast, if the wizard makes a successful saving throw versus paralysation, his spell will have normal effects (as if it were cast on the prime material plane) instead of the effects it usually has on that plane.
If the recipients are still on the plane when this spell expires, normal characteristics for that plane go into effect immediately. Note that this spell provides no way of moving from one plane to another; it only provides a means of survival once a plane is reached. The wizard may have more than one of these spells in affect at a time, as long as the appropriate amount of time has been spent studying each plane.
The material components for this spell are a diamond worth at least 1000 gp and a specimen of a substance related to the plane in question (i.e. some fire for the plane of fire, darkness for the negative material plane, etc.). Alternately, something symbolising the plane may be used (i.e. a balance for the plane of concordant opposition). 

