AOE damage reduction no stack

DELETE FROM `spell_group_stack_rules` WHERE `group_id`=15100;
INSERT INTO `spell_group_stack_rules` (`group_id`, `stack_rule`) VALUES (15100, 3);

DELETE FROM `spell_group` WHERE `id`=15100 AND `spell_id`=978712;
INSERT INTO `spell_group` (`id`, `spell_id`) VALUES (15100, 978712);
DELETE FROM `spell_group` WHERE `id`=15100 AND `spell_id`=865819;
INSERT INTO `spell_group` (`id`, `spell_id`) VALUES (15100, 865819);
DELETE FROM `spell_group` WHERE `id`=15100 AND `spell_id`=112000;
INSERT INTO `spell_group` (`id`, `spell_id`) VALUES (15100, 112000);
DELETE FROM `spell_group` WHERE `id`=15100 AND `spell_id`=33867;
INSERT INTO `spell_group` (`id`, `spell_id`) VALUES (15100, 33867);
DELETE FROM `spell_group` WHERE `id`=15100 AND `spell_id`=888571;
INSERT INTO `spell_group` (`id`, `spell_id`) VALUES (15100, 888571);