Evocation
Level: Cleric 3, Sentinel 3
Components: V, S
Casting Time: 1 standard action
Range: Personal
Target: You
Duration: 1 minute/level (D)
You surround yourself with a sphere of power with a radius of 5 feet per caster level that negates all forms of invisibility.
Anything invisible becomes visible while in the area.
Source: Player’s Handbook (Page 245)