Assume Appearance, Greater

Transmutation (Polymorph)
Level: Alchemist* 4, Artificer * 4, Bard * 4, Shaman * 4, Sorcerer */Wizard * 4, Summoner * 4, Warlock * 4
Components: V, S, F (corpse or likeness of the deceased creature whose form you plan to assume)
Casting Time: 1 minute
Range: personal
Target: you
Duration: 1 day/level (D)
Saving Throw: -
Spell Resistance: -
  When you cast this spell, you can assume the exact form of a deceased Small or Medium creature of the Humanoid type. Your voice changes to match that of the form you assume. If the form you assume has any of the following abilities, you gain the listed ability: Darkvision 60 feet, Low-Light Vision, Scent, and Swim 30 feet.
  Small creature: If the form you take is that of a Small humanoid, you gain a +2 Size Modifier to your Dexterity.
  Medium creature: If the form you take is that of a Medium humanoid, you gain a +2 Size Modifier to your Strength.
  The creature whose form you assume must be Dead. You must either have access to its fresh corpse (either Dead less than 24 hours, or preserved via Gentle Repose or similar effect), or a likeness (such as a sketch or painting) that is fairly accurate. If there is an age difference between the likeness and the actual creature, you take on the appearance of the creature near the end of its life. Any attempt to copy the form of a living creature causes the spell to fail.
  You do not have access to the assumed form's abilities, memories, or mannerisms. If you have heard the creature whose form you plan to assume speak aloud, you can also copy its voice as Vocal Alteration (speak with dead can also be used to fulfill this requirement). The spell grants a +10 bonus on Disguise checks to appear as the imitated creature. If the assumed creature is returned to life while this spell is active, assume appearance immediately ends.
  If a likeness used as a focus for the spell is kept on your person or within 30 feet at all times, the aura of greater assume appearance is redirected to the likeness instead of to you, similar to a reverse application of the Misdirection spell.