AD&D

Priest spellLevel 5reversible

True Seeing

School
Divination
Sphere
Divination
Range
Touch
Components
V / S / M
Duration
1 rd./level
Casting time
8
Area of effect
1 creature
None
Source
PHB

Flavor

The priest's eyes pierce every deception — illusions, invisibility, disguises, and shapechanges all fall away.

Mechanics

. For 1 / the priest sees all things as they truly are within ~120 ft: invisible creatures, illusions (as false), polymorphed/disguised forms (true form), secret doors, and auras. Doesn't grant X-ray vision. Reverse (false seeing) deceives. : an ointment of rare herbs (~$$) applied to the eyes, plus the holy symbol.