Lawyers from a class action specialty firm "are looking for players who are upset about a particular Diablo Immortal item: the Blessing of the Worthy gem"
Polygon:
The problem is that players bought the Blessing of the Worthy gem via those bundles, expecting that the gem’s effect would have a 20% chance to do damage worth 12% of a player’s maximum life — something the original description promised. But in actuality, it’s a 20% chance to do damage worth 12% of a player’s current life. If your current life is low, the gem won’t actually do much damage.