Marked by the Eye/Beholding [TMA]

The Ceaseless Watcher, It Knows You, The Beholding, The Eye.

Somewhere, at some point, you have been watched, stalked, had secrets pulled out of you, and felt that true primal fear of being watched, and judged, and Known.

Once per long rest, you can choose to gain advantage in Perception, Insight, Investigation, Arcana, Nature, or History checks until your next long rest.

You gain proficiency in perception if you don't already have it.

You can understand all writing.

You are vulnerable to psychic damage.