PvP settings
Spells will effect what you can target (i.e. don't have to be hostile first), friendly fire for area effects.
Two quick questions:
1. Does this rule apply to melee PBAOEs such as whirling attacks?
2. Is this rule open for discussion? I understand that it may have been implemeneted to add to realism, but (imho) it simply restricts AOE classes. A good majority of Sorceror and Wizard damage spells are AOE centric and this rule would very often tie their hands behind their backs.