Brainiac is the final boss of the 'Oolong Island' Alert, a challenging 4-player encounter. He uses a combination of energy attacks, mind control, and environmental hazards.

Phases & Abilities:
- Phase 1: Tentacle Slam & Energy Blasts: Brainiac will primarily use powerful tentacle slams (avoid the ground indicators) and ranged energy blasts. The Tank should position him away from the group.
- Phase 2: Mind Control: At around 70% health, Brainiac will periodically mind control one or more players, turning them against their allies. The controlled player will have a purple aura. Other players must quickly use a 'break out' ability (usually a specific power or weapon attack) to free them, or simply damage them until they are freed. Do NOT kill controlled allies.
- Phase 3: Exobyte Overload: Below 40% health, Brainiac will summon Exobyte Clusters around the arena. These clusters will explode after a short delay, dealing heavy damage. Players must focus fire on these clusters to destroy them before they detonate.
- Phase 4: Combined Assault: In his final phase, Brainiac will combine all previous abilities, frequently using mind control and summoning Exobyte Clusters while continuing his tentacle slams and energy blasts.
Strategy: Prioritize freeing mind-controlled allies. Quickly destroy Exobyte Clusters. Tanks should maintain aggro and position Brainiac. Healers need to be ready for sustained damage. Interrupt his channeled abilities when possible.
Rewards: Marks of Victory, Source Marks, and a chance for Brainiac-themed gear drops.