Gorgon

The Gorgons are a group of nine unique Vex Harpy units reputed to reside within the Vault of Glass. They are described as being an "ontological weapon": beings capable of rewriting reality to their advantage. Their abilities are apparently limited to the Vault, however.

If a Gorgon detects a player (this includes shooting at them), the Gorgon will activate "Gorgon's Gaze", and the party has ten seconds before they are all killed instantly. Even if the players manage to kill the Gorgon within that period of time, the remaining Gorgons become stronger and more perceptive; this means killing them all would be a very difficult strategy.

Trivia
Gorgons were a mythological monster from ancient Greece, who were said to kill people by simply looking at them.

List of appearances

 * Destiny