Crotheon, Gate Keeper

Crotheon, Gate Keeper is a Vex Axis Mind deployed to gather troops for an invasion of the Moon. He is part of the Sol Divisive collective.

Appearance
Crotheon, is a Vex Minotaur, his role is to protect Vex forces as the mass in the Black Garden to invade the Moon. He is destroyed by Guardian forces when they launched an attack to counter Vex attacks on the Moon.

Gameplay
At times, Crotheon will become impervious to all damage due to shields. At this moment, you must destroy specific Minotaurs that will drop a Vex cranium that can be used to take down his shield. Once his shield is down you can damage him for about 20 seconds, and then his shield will come back up, continue doing the same process until he is destroyed.