Strategy

The basics are: Avoid the snowfalls (they lead to icicles), don't get frozen, remove freeze from the NPC's, dps Hodir.

The icicles fall from the ceiling in a Gruul-like mechanic: you notice snowflakes falling (fairly obvious, although their exact area can be hard to pinpoint) and you have about 4 seconds to move out.

These icicles deal sizeable (12k) damage, and is the bulk of the raid damage. Reduce the amount of "getting hit by icicles" and you reduce the number of healers you need.

Periodically he will cast freeze, which is a frostnova: ~5k damage, hits an area, immobilizes for 10 seconds. Can (and should) be dispelled.

Flash Freeze

Flash Freeze is cast approximately once every 30-45 seconds (it has an internal cooldown of 30 seconds so can be cast that frequently.) It is a 9 second cast.

While it's casting, you need to look for those Icicles and find the ones that are, at the start of his cast, still in snowflake form. You will need to move *near* these but not *on* them. You can be very close. Look for a white cloud around them, that's the sign that those are the icicles that will form snowdrifts.

As soon as they form snowdrifts on the ground (which is right after the icicles land) you need to move onto them -- a short strafe is sufficient. This will protect you from getting frozen.

Pets *will* get frozen, so pet classes must recall pets during this period (and bloodworms shouldn't be spec'd into by DK's until this is fixed if you are using NPC's.)

The NPC's will also get frozen and, if you are using them, must be unfrozen as fast as possible.

The blocks of ice have 44khp on Heroic mode, 35k on Normal mode.