Every time we get to oryx we detonate the 16 orbs "the challange" way and then we got to mid to damage him after that when he goes to the mid to execute him he is still full health.
Hey sharkasi96,
Oryx challenge is working as intended. If you're experiencing issues there may be someone in your game having connection issues or Oryx is not taking enough consistent damage to the chest while the blights are being detonated. The latter seems to be the more common issue. Please keep in mind, the damage needs to be more consistent than powerful. Using a high rate of fire weapon (Touch of Malice) is better than using a low rate of fire weapon (Sleeper Simulant, rockets, etc).
The people staying in mid have to keep constant damage (preferably with Touch of Malice) on his chest while the others detonate the bombs so that he can take damage from bombs. Otherwise, you can attribute the lack of damage to the member(s) lag in tge fireteam.