Core/Spells: Make some spells negative (#21696)

Closes #21634

(cherry picked from commit 5fa783bd34d8e5b32aded6b87a1e4b196b7c4022)

src/server/game/Spells/SpellInfo.cpp

@@ -4336,6 +4336,8 @@ bool _isPositiveEffectImpl(SpellInfo const* spellInfo, SpellEffectInfo const& ef
             {
                 case 61987: // Avenging Wrath Marker
                 case 61988: // Divine Shield exclude aura
+                case 72410: // Rune of Blood, Saurfang, Icecrown Citadel
+                case 71204: // Touch of Insignificance, Lady Deathwhisper, Icecrown Citadel
                     return false;
                 case 30877: // Tag Murloc
                 case 61716: // Rabbit Costume
@@ -4414,6 +4416,8 @@ bool _isPositiveEffectImpl(SpellInfo const* spellInfo, SpellEffectInfo const& ef
                 case SPELL_AURA_SCHOOL_HEAL_ABSORB:
                 case SPELL_AURA_CHANNEL_DEATH_ITEM:
                 case SPELL_AURA_EMPATHY:
+                case SPELL_AURA_MOD_SPELL_DAMAGE_FROM_CASTER:
+                case SPELL_AURA_PREVENTS_FLEEING:
                     return false;
                 default:
                     break;
@@ -4547,6 +4551,7 @@ bool _isPositiveEffectImpl(SpellInfo const* spellInfo, SpellEffectInfo const& ef
             case SPELL_AURA_MOD_CHARGE_COOLDOWN:
             case SPELL_AURA_MOD_POWER_COST_SCHOOL:
             case SPELL_AURA_MOD_POWER_COST_SCHOOL_PCT:
+            case SPELL_AURA_MOD_MECHANIC_DAMAGE_TAKEN_PERCENT:
                 if (bp > 0)
                     return false;
                 break;