Nexus Guardians

Nexus Guardians are Vex Harpy adds in the Fantis fight in Expunge. After Fantis takes a small amount of damage it gains an immunity shield, and two Nexus Guardians spawn. Each carries a Data Spike, which players must defeat the Guardian to obtain and carry to the terminals outside the main arena to lower the shield.

Once the shield is down, Fantis stops summoning immunity shields for the rest of the fight. Reported drop-off points vary between guides.