Baron Geddon Heroic is an encounter inside the Blackrock Mountain 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 Baron Geddon Heroic by first completing Garr.
Choose an enemy each turn. If it acts last in combat, deal @ damage to it and its neighbors.
Potential Baron Geddon 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 Baron Geddon Heroic Bounty: