Truesight

A creature with Truesight has enhanced vision within a specified range. Within that range, the creature’s vision pierces through the following:

• Darkness. The creature can see in normal and magical darkness.
• Invisibility. The creature can see creatures that have the Invisible condition and objects that are obscured by magic.
• Visual Illusions. The creature notices visual illusions and automatically succeeds on saving throws against them.
• Transformations. The creature discerns the true form of any creature or object it sees that has been transformed by magic.
• Ethereal Plane. The creature can see into the Ethereal Plane.