Sack of Frosty Treasures

Source
Sack of Frosty Treasures was a reward for completing the following weekly Icecrown Citadel raid quest:
 * Deprogramming
 * Securing the Ramparts
 * Residue Rendezvous
 * Blood Quickening
 * Respite for a Tormented Soul

Contents
The sack contained five, and occasionally an epic gem. It also has a small chance of containing any BoE item which could drop in Icecrown Citadel in 25-player mode, including both trash and boss drops.

Concept
One of five quests will be randomly available each week in both 10- and 25-player versions of Icecrown Citadel. This means each player has the opportunity to complete two Icecrown Citadel raid weekly quests each week if the dungeon is run in both versions. However, these quests have to be completed within the same raid ID in which they are obtained.

The quest offered within a particular raid will be randomly determined once Lord Marrowgar is killed. If a player obtains one of these quests but does not complete it that week, the quest will automatically be removed from the player's Quest Log the next time Lord Marrowgar is defeated under a new raid ID, or when zoning into an instance with a new raid ID where Lord Marrowgar has already been defeated. This only applies if the random raid weekly offered when the player enters a new Icecrown Citadel raid instance happens to be different from the one already in his or her Quest Log. Players can otherwise simultaneously have both the 10- and 25-player raid weekly quests in their Quest Logs and complete either of them at any time during the week in their respective raid versions. Weekly icecrown raid quests are flagged in the log by the size of raid (as "raid 10" or "Raid 25").