Elite packs of monsters (Bosses and Champions alike) have Special Effects that they can use to help they better kill your character. These effects can be split into three categories: Crowd Control, Ground Effects, and Defensive.
- Frozen - Elite Boss will cast this periodically, creating ice crystals in a random pattern in the area. The blast wave will be displayed on screen before the effects take place, giving you warning time to get out of the way. If you are hit, you will be frozen for x number of seconds till you thaw out. This effect CAN be dodged and blocked. Elite Champion packs can each INDEPENDENTLY cast Frozen, causing chain freeze effects that can last MUCH longer. Monk "Serenity" skill and Witch Doctor "Spirit Walk" and passive "Spirit Vessel" skills can break this effect, as can Barbarian's Wrath of the Berserker. Demon Hunters can use "Smoke Screen", and Wizards can use "Mirror Image" and "Teleport - Fracture".
- Vortex - Elite Boss will cast this periodically, pulling your character to it's location. Effects are immediate, but can be blocked by intervening obstacles. Elite Champion packs can each Independently cast Vortex, causing you to be bumped back and forth like a pinball. If your character is in the middle of certain attack routines, you may not be affected by this attack. Such attack routines include Barbarian Whirlwind, Monk Seven Sided Strike and Tempest Rush, and various other long duration attacks.
- Jailer - Elite Boss will cast this periodically, confining your character to it's location. Elite Champion packs can each Independently cast Jailer, causing you to be chain Jailed for a long time. Wizard "Teleport" skill will move you to another location but still be in jail, unless you use the "Fracture" rune. Barbarian "Leap" skill and "Wrath of the Berserker" will keep you out of jail. Monk "Fists of Thunder - Thunderclap", "Serenity", "Dashing Strike" skills can be used to break or move yourself while jailed, as will "Seven Sided Strike". Demon Hunter "Vault", "Smoke Screen", and "Evasive Fire" skills are also effective at breaking jail. Witch Doctor "Spirit Walk" skill and "Spirit Vessel" passive skill can break this effect.
- Nightmarish - Elite Boss will cast this periodically, causing you to run away for x seconds. Your running speed will be taken into account while you flee. The faster you run, the further you run away! Elite Champion packs can each INDEPENDENTLY cast Nightmarish, causing you to run away repeatedly with little control over where you are going and what you are running through to get there. Wizard "Teleport" and "Mirror Image" will break this effect. Monk "Serenity" and Demon Hunter "Smoke Screen" are also effective. Witch Doctor "Spirit Walk" skill and "Spirit Vessel" passive skill can break this effect, as will a Barbarian using "Wrath of the Berserker".