The wish spell is a more potent version of a limited wish (q.v). If it is used to alter reality with respect to hit points sustained by a party, to bring a dead character to life, or to escape from a difficult situation by lifting the spell caster (and his or her party) from one place to another, it will not cause the magic-user any disability. Other forms of wishes, however, will cause the spell caster to be weak (-3 on strength) and require 2 to 8 days of bed rest due to the stresses the wish places upon time, space, and his or her body. Regardless of what is wished for, the exact terminology of the wish spell is likely to be carried through. (This discretionary power of the referee is necessary in order to maintain game balance. As wishing another character dead would be grossly unfair, for example, your DM might well advance the spell caster to a future period where the object is no longer alive, i.e. putting the wishing character out of the campaign.)