Scripts/Four Horsemen: Horsemen's main spells should only explicitly target players

src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp

@@ -354,7 +354,7 @@ public:
 
                         if (caster)
                         {
-                            if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 45.0f))
+                            if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 0, 45.0f, true))
                                 DoCast(target, SPELL_PRIMARY(id));
                         }
                         else