added PhantomReducer

craftattack/src/main/java/eu/mhsl/craftattack/spawn/craftattack/appliances/tweaks/phantomReducer/PhantomReducer.java

@@ -0,0 +1,16 @@
+package eu.mhsl.craftattack.spawn.craftattack.appliances.tweaks.phantomReducer;
+
+import eu.mhsl.craftattack.spawn.core.appliance.Appliance;
+import org.bukkit.event.Listener;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+
+public class PhantomReducer extends Appliance {
+    @Override
+    protected @NotNull List<Listener> listeners() {
+        return List.of(
+            new PhantomSpawnListener()
+        );
+    }
+}

craftattack/src/main/java/eu/mhsl/craftattack/spawn/craftattack/appliances/tweaks/phantomReducer/PhantomSpawnListener.java

@@ -0,0 +1,16 @@
+package eu.mhsl.craftattack.spawn.craftattack.appliances.tweaks.phantomReducer;
+
+import eu.mhsl.craftattack.spawn.core.appliance.ApplianceListener;
+import org.bukkit.entity.Phantom;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.entity.CreatureSpawnEvent;
+
+import java.util.concurrent.ThreadLocalRandom;
+
+class PhantomSpawnListener extends ApplianceListener<PhantomReducer> {
+    @EventHandler
+    public void onPhantomSpawn(CreatureSpawnEvent event) {
+        if(!(event.getEntity() instanceof Phantom)) return;
+        if(ThreadLocalRandom.current().nextDouble() > 0.8) event.setCancelled(true);
+    }
+}