The Technocrat
In a single life, collect radiolarian fluid by defeating Vex in Asterion Abyss with precision final blows.
Variks believes Praksis is experimenting on the Vex. He wants you to destroy Vex to disrupt Praksis's plans.
"Praksis kept his secrets close. Variks was not permitted to know the ways of his inventions…" —Variks the Loyal