Avalanchan Heroic is an encounter inside the Winterspring set of Mercenary Bounties.
This bounty can be picked up from the Bounty Board and recommends a Party level of 30 to complete it.
You can unlock Avalanchan Heroic by first completing Yeti Hunter Ranel.
Taunt. Freeze any character damaged by this merc.
Potential Avalanchan Heroic Bounty Rewards
In addition to earning Mercenary Coins based on your Party members, Bounties are assigned to specific Mercenaries to allow you to target loot better.
The following Mercenaries can have their loot appear in the Avalanchan Heroic Bounty: