Damages creatures in range.
Sorrow's Fist is a giant flail head used by the Iron Forgeman to attack players in the quest The Forge Heart. Sorrow's Fist is huge and almost always causes sudden death if it falls squarely on a player.
Players can spot the tip of the Fist a few seconds before it falls and they should constantly keep moving. Another warning sign is that the Iron Forgeman will use it usually around the same spot he uses Sorrow's Flame.