Mister Freeze (Arkham Asylum)

Mister Freeze has escaped his restraints thanks to an unknown benefactor and has taken over Arkham Asylum's East Wing, freezing the asylum's halls with his ice as Poison Ivy and Scarecrow take over the other wings.

Involvement

 * Mister Freeze is a miniboss in the Arkham Asylum (Alert) instance. Players are tasked by Batman (heroes) and Joker (villains) to re-incarcerate him.

Fight Mechanics

 * Phase 1:
 * Mr. Freeze will begin by attacking with strong melee attacks that should be blocked when possible. He will periodically unleash a devastating attack (accompanied by a warning message), jumping to the center of the room and dealing high damage to anyone in line of sight - the entire group must hide behind one of the four pillars. After this, he will start dropping icicles in a random pattern. Players should focus on damaging him at range while sticking together to ease healing. (Note: there are markings on the ground briefly before an icecicle falls. Paying attention to this and moving when necessary will ease the need for healing in p1.)
 * Phase 2:
 * Phase 3:
 * Phase 3:
 * Phase 3:

Phase Two
After 90 seconds Mr. Freeze will summon two Terminator melee robots and coat them in ice, making them highly resistant to damage. These must be pulled right next to one of the boilers in the room, which, when attacked, will light and will cause their armor to melt and make them vulnerable. Mr. Freeze will periodically re-freeze the boilers using his devastating attack, causing the boilers to have to be retargetted and damaged until lit, and he can't be targeted until both Terminators are defeated, at which point he will return to phase 1.

Phase Three
At 10% health the freezing rain will begin to solidify and the group has very little time to finish Freeze off before becoming encased. Standing next to an activated boiler, however, will melt the freezing rain from the player and allow them to continue to fight unhindered.

This method of killing Mr. Freeze is all about DPS. If you can get Mr. Freeze to 50% health before he stops dropping icicles, he will go straight into phase three and skip the Terminator robot phase all together, which makes the a much easier fight.
 * Alternative method