Batcave: Inner Sanctum

Brainiac has co-opted Brother Eye, Batman's sentient satellite, and the OMAC virus to take over the Batcave. With Batman's allies compromised, the world depends on you to face down Brother Eye.

Trash Notes

 * Eye Drones will drain power from their target at about 200 per second using a purple and yellow beam until interrupted or destroyed
 * NeurOMACs have an orange aura that will stun anyone caught in it. The stun is unbreakable
 * Omac Primes possess a devastating spin attack that deals high damage and knockback to all it hits
 * Elite Guardians always move in pairs. While they are linked they will be shielded and will one-hit-KO players - tanks need to separate them either using a wall or putting enough distance between them to take them down swiftly.

Fight Overview
The A.R.C. will start out with only one ability - the Clean Sweep Protocol, which creates a huge torrent, knocking back players and objects alike. However, every time it loses about 20% hp it will protect itself with a shield, becoming immune to all damage and taunts and will chase a random player while reinforcements arrive. After approximately 30 seconds it will consume one of the drones and gain a new ability based on the type of drone consumed:
 * Wing Armor - creates a vortex that will suck in all nearby players and objects, dealing damage
 * Omega Sentry -
 * Sentry Drone -
 * Omac Prime - a Whirlwind Attack almost identical to the one used by the Primes, but with an added tornado effect
 * Omac - an Energy Blast barrage that will be targeted at the tank. This does huge ammounts of damage and needs to be dodged
 * Arrester Drone - a beam that will stunlock and damage the tank. Unbreakable
 * Pacifier Drone - a significantly more potent Riot Foam beam that will always encase it's target after several seconds - lasts 5 seconds and is unbreakable

General Strategy
Due to the high ammount of damage and AE knockbacks this boss does in close to medium range, it is highly recommended that everyone including the tanks stay as far away as possible, especially after 2 or more drones have been consumed. The raid can focus down different types of enemy drones to deny the A.R.C. access to their abilites, but once a drone has been targeted (encased in a glowing red forcefield) it will be consumed.

The main threat is the Omac-derived Energy Blast which will fire many fast moving and high damaging aimed projectiles. As a rule of thumb tanks should always fight it at range when possible to better avoid this.

Zetta-Drone
The Zetta-Drone is arguably the easiest boss in this raid. It is always accompanied by four smaller Bat Drones which should be ignored for the most part as they will immediately be replaced when destroyed.

Repair drones will periodically spawn at either the North or South side of the room. They are slow-moving green Omacs that are highly succeptible to crowd control effects and will self destruct once their health is low enough. For the most part they will ignore the raid and attempt to get close to the Zetta-Drone and heal it, which is why they need to be destroyed quickly.

As the fight progresses the boss will gain two different spin abilities. The first will be at around 80% hp and will cause it to spin into the raid, knocking back and damaging everyone. The second spin acquired at around 40% hp will cause it to move North and South in a straight line down the middle of the room. Players should stay out of its path and focus on the drones.

It will also sometimes "upgrade" one of the Bat Drones, causing it to spin uncontrollably into the raid until it is destroyed.

Brother Eye
The Brother Eye fight is without a doubt the hardest boss fight currently in the game. It will test both your teamwork and individual skills. It is highly recommended to use voice chat for this.

While there is no enrage timer, Batman will be attacked throughout the entire fight. If he is defeated the fight will be lost, but this is unlikely to happen.

Phase One
The objective in the first phase is to shut down 5 shielded consoles. Batman will move between them and will work on disabling their shield - once the shield is down the raid has a limited ammount of time to attack the console before the shield reactivates.

Throughout the entire phase Brother Eye will constantly bombard the area with four beams that will deal high damage to anyone who does not move out of them immediately.

The raid will also be swarmed by Omacs, Omac Primes, NeurOMACs and Eye Drones, and they can easily overwhelm the raid.

Periodically Brother Eye will consume all adds on the field to charge a special attack - if the charge reaches 10 he will unleash one of three attacks - a devastating laser which will one-hit most victims and always follows the same pre-set path, multiple orange beams that create vortexes or numerous delayed energy blasts (visible as pulsing red spheres on the ground) which will charge up and detonate.

To survive this phase the raid needs to be highly organized. It is necessary to either split into two groups to cover the East and West side, or spread out evenly. DO NOT stay as one big group as that makes you a very easy target for all the AoE. It is very important to kill off Eye Drones, Omac Primes and NeurOMACs (in that priority if possible) but should not completely ignore regular Omacs as they have fairly low health and if allowed to mass will put out immense pressure.

Phase Two
Once all 5 consoles are down, Brother Eye will attack. Adds will no longer spawn, so the first order of business is to mop up any remaining ones. Brother Eye will only use 3 special attacks and cannot be tanked. These attacks are: Once the raid reaches this phase it is very possible to defeat it with 4-5 people if a healer is still available. However, if it drags on too long Batman will be taken out and the fight will reset.
 * A teleport that will deal damage to anyone caught in the boom tube
 * An erraticly moving spinning whirlwind that will damage and knockback anyone hit by it
 * A charged beam that will one hit anyone in front of Brother Eye

The cutscene and Oracle's communication that follow Brother Eye's defeat clearly show that there is a third Batcave raid in the planning and reveals the final boss.