Disintegration
The Rethiarius breaks into a large number of small components. Three of them contain particles of divine sparks which can be picked up once the component is destroyed. The boss remains in that state for a certain period of time then becomes whole again. If the character manages to pick up all spark particles, they activate their divine form, and the Rethiarius returns to its basic form.
Alpha Shield
The Rethiarius surrounds itself with a shield and starts summoning Oculats. The shield can be removed by sending a signal from one or several consoles placed around the platform. Signals from different consoles travel at different speeds. For the shield to be destroyed, the Rethiarius should receive a certain number of signals nearly at the same time. The shield must be destroyed within a limited time. If the characters fail to do that in time, the Rethiarius deals fatal damage to them.
Ranged ability.
Cooldown: up to 150 seconds.
Instability
The Rethiarius surrounds itself with an impenetrable shield, and energy blobs start to fly around it. Some of the blobs move towards the champion to restore part of its health. The remaining blobs chase the characters. If such a blob hits a character, it will deal fatal damage to them. If it hits the champion, it will activate the shield removal phase. To remove the shield completely, all chasing blobs must hit the champion within a short period of time. The shield must be destroyed within a limited time which changes depending on the stage of the battle. If the characters fail to do that in time, the Rethiarius deals fatal damage to them.
Ranged ability.
Cooldown: up to 150 seconds.
Lock Code
The Rethiarius surrounds itself with a shield and marks two random players. The players should take positions at a certain distance from the Rethiarius and each other to remove the shield. The lower the boss’s health, the more pairs are marked and must remove the shield. While the shield is active, the boss summons Secutor Interceptors that chase the marked players. The shield must be destroyed within a limited time which changes depending on the stage of the battle. If the characters fail to do that in time, the Rethiarius deals fatal damage to them.
Ranged ability.
Cooldown: up to 150 seconds.
Frontal Lightning Attack
The Rethiarius attacks all characters in a wide cone in front of it with lightning, leaving a small safe area behind it. During the same stage, the champion picks one of the enemies and defends itself against them using a small shield.
Ranged ability.
Cooldown: 15 seconds.
Rear Lightning Attack
The Rethiarius attacks all characters in a wide cone behind it with lightning for 15 seconds, leaving a small safe area in front of it. During the same stage, the champion picks one of the enemies and defends itself against them using a small shield.
Ranged ability.
Cooldown: 15 seconds.