Psion units are support Vek that buff other enemies. They are typically low-health but high-priority targets. The 'Acid Psion' grants +1 damage to all Vek. The 'Horizon Psion' grants all Vek a shield, making them immune to the first hit. Always prioritize killing Psions immediately, even if it means taking a hit to a Power Grid. Their buffs can quickly spiral out of control, making the mission much harder. Use ranged attacks or quick movement to reach them.
