As every Disc Priests knows Smite puts a debuff on the target negating a small amount of damage from their next attack which can stack up to 3 times (I believe).
Does anyone know how that interacts with AoE damage abilities? There are some telegraphed charged up abilities like BRH first boss which you can get a 3 stack quite easily. Does the debuff work on all to lower the AoE damage or is it split up per target? For example if you have a 300k debuff (number for simplicity) with a 5 member dungeon team about to be hit with a 1M damage AoE explosion. Does each member get hit for 700k (1M - 300K)? or is it 940K (1M-(300K/5))?