Instant Enemy
School: enchantment
Casting Time: swift action
Components: V, S
Range: close (25 feet + 5 feet/2 levels)
Target: creature that is not your favored enemy (1)
Duration: 1 minute/level
Saving Throw: none
Spell Resistance: no
Source: Advanced Player's Guide, p. 230
Description
With this spell you designate the target as your favored enemy for the remainder of its duration. Select one of your favored enemy types. For the duration of the spell, you treat the target as if it were that type of favored enemy for all purposes.