Corpse Copy

You make a duplicate of a corpse in its current condition. A copy of the target corpse appears beside the original. It is considered as genuine a corpse as the original. A person may be revived into either corpse using the appropriate spell, And it counts as a corpse for making undead followers. Others must make an intelligence check  to determine which is the original. It degrades as a normal corpse would. After 30 days the corpse disintegrates unless it has been returned to life or animated.

Cating at Higher Levels. When you cast this spell using a 2nd level spell slot, the corpse lasts half a year, 3rd level spell slot and its lasts a year, 4th level spell slot and above makes a permanent copy.