Luminosity N/A Planets Moons 0 Asteroid Belts 0 Asteroids 0 Objects 0 Location: Milky Way / Krogan DMZ / Dranek Dranek is a medium system with four . Prerequisite: Mordin: Old Blood or Grunt: Rite of Passage and Firewalker Pack (Mass Effect 2) Prerequisite: Citadel: Barla Von (Mass Effect 3) Note: After completing Priority: The Citadel II in Mass Effect 3, the Dranek system becomes inaccessible.