History of Gatekeeper

Gatekeepers are large Vex enemies fought in the Gatekeepers encounter of the Vault of Glass raid, which comes before the Atheon fight.

Overview

Teams stand on sync plates to hold open portals to Mars (the past) and Venus (the future). Each portal leads to a conflux, where Vex sacrifice attempts by Praetorians must be stopped. Praetorians carry white shields that only Relic damage can remove. Players who use a portal receive the Teleport Destabilized debuff, which blocks portal use for 45 seconds. Inside the portal dimensions, players receive Marked by the Void, which blinds them until it is cleansed.

Hydras can appear on the floating block in the middle of the throne room and close both portals instantly until they are destroyed.

Challenge

The encounter challenge is Strangers in Time.