Team with their Healer
Those Tanks will end up taking their frustration out on the entire group, instead of finding a way to team with their Healer to lessen the frustration. seven souls gold is the core to this game. For example, a Gnomer run I was in last night had a Paladin Tank and a Druid DPS, but the Druid was in bear form and was pulling ahead of the Tank, despite the Tank frustrated requests that he/she not continue to do that.
