Magic Jar

This spell allows the caster to attempt to possess the body of another living creature. The caster begins by placing their spirit into a gem, jewel, or large crystal of some sort within the spell range, called the magic jar. The caster needs to know where the magic jar is located, but does not have to be able to see it. While the caster's spirit is outside their body, that body appears to all intents and purposes to be dead, but does not undergo decay as a normal dead body would. Each round after entering the magic jar the caster's spirit can attempt to take control of the body of a living creature within the spell range; the target is allowed a save vs. Spells to resist. If the saving throw fails, the spirit of the target (now called the host) is trapped in the magic jar and the caster's spirit takes possession of the host's body. Possession of a creature by means of this spell is blocked by protection from evil or a similar ward. If the attempt to possess a victim fails, the caster's spirit remains in the magic jar, and that target creature is immune to further attempts for the duration of the spell. The caster may make an attempt to possess another target on the following round, if desired. If on the other hand the possession attempt is successful, the caster may remain in control of the host's body for as long as desired. The caster's spirit may return to the magic jar at any time when it is within spell range, restoring the host's spirit to its own body. The caster may not return to the same host's body again for the remainder of the duration of this spell, but may attempt to possess it again on a subsequent casting. Whenever the caster's spirit is in the magic jar, it may choose to return to its own body if it is within spell range. If the body is not in range, the caster's spirit may become trapped if no vulnerable creatures are in range. Whenever the caster's spirit returns to their own body, the spell ends. There is a 50% chance that the magic jar will shatter when the spell ends (if the spell did not end because it was broken), becoming worthless and unusable. When the caster's spirit possesses a host, the caster has access to the physical abilities of the host's body, including Strength, Dexterity, and Constitution, while still retaining their own Intelligence, Wisdom, and Charisma. The caster has access only to their own knowledge, class and level, attack bonus, saving throws, spell casting ability, and any other purely mental capabilities. The caster does not gain access to supernatural or otherwise extraordinary powers of the host, and may not be able to perform physical actions that the caster has never done before (such as flying, if a winged body has been possessed). The caster does have access to the host's sensory capabilities, such as Darkvision, the enhanced sense of smell of a dog, and so on. If the caster's spirit is in the magic jar, and the jar is broken (whether by dispel magic or physical damage), the caster's spirit will return to its own body if it is in spell range; if not, the caster's spirit departs (i.e. the caster dies). In either case, the spell ends. If the caster's spirit is driven from the host body by dispel evil, and the magic jar is in range of the host body, the caster's spirit returns to the jar and the host's spirit returns to its body. The caster will not be able to possess the same host again for the remaining duration of the spell. If the magic jar is not in range of the host body, the caster's spirit departs, the host's spirit is freed from the jar and also departs, and the host's body dies. If the host's spirit is in the magic jar, and the jar is broken while in spell range of the host body, the caster's spirit departs, the host's spirit returns to its body, and the spell ends. If the jar is broken while out of range of the host's body, the host's spirit departs, the caster's spirit is stranded in the host body. Note here that the spell has not ended. Dispel evil can still be used to drive the caster's spirit from the body, which departs as noted, ending the spell. A stranded caster may use another casting of this spell (with another magic jar, of course) to return to their own body, which of course kills the host's body.