diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/Char.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/Char.java
index 7facf2810..0cd526400 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/Char.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/Char.java
@@ -133,18 +133,22 @@ public abstract class Char extends Actor {
 
 		//throw any items that are on top of an immovable char
 		if (properties.contains(Property.IMMOVABLE)){
-			Heap heap = Dungeon.level.heaps.get( pos );
-			if (heap != null && heap.type == Heap.Type.HEAP) {
-				int n;
-				do {
-					n = pos + PathFinder.NEIGHBOURS8[Random.Int( 8 )];
-				} while (!Dungeon.level.passable[n] && !Dungeon.level.avoid[n]);
-				Dungeon.level.drop( heap.pickUp(), n ).sprite.drop( pos );
-			}
+			throwItems();
 		}
 		return false;
 	}
 
+	protected void throwItems(){
+		Heap heap = Dungeon.level.heaps.get( pos );
+		if (heap != null && heap.type == Heap.Type.HEAP) {
+			int n;
+			do {
+				n = pos + PathFinder.NEIGHBOURS8[Random.Int( 8 )];
+			} while (!Dungeon.level.passable[n] && !Dungeon.level.avoid[n]);
+			Dungeon.level.drop( heap.pickUp(), n ).sprite.drop( pos );
+		}
+	}
+
 	public String name(){
 		return Messages.get(this, "name");
 	}
diff --git a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/YogDzewa.java b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/YogDzewa.java
index bb8ddf77d..8a2908afc 100644
--- a/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/YogDzewa.java
+++ b/core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/YogDzewa.java
@@ -27,8 +27,10 @@ import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
 import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Amok;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Charm;
+import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Frost;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Light;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.LockedFloor;
+import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Paralysis;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Sleep;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Terror;
 import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Vertigo;
@@ -70,6 +72,8 @@ public class YogDzewa extends Mob {
 		//so that allies can attack it. States are never actually used.
 		state = HUNTING;
 
+		viewDistance = 12;
+
 		properties.add(Property.BOSS);
 		properties.add(Property.IMMOVABLE);
 		properties.add(Property.DEMONIC);
@@ -112,7 +116,19 @@ public class YogDzewa extends Mob {
 
 	@Override
 	protected boolean act() {
-		enemySeen = true;
+		//char logic
+		if (fieldOfView == null || fieldOfView.length != Dungeon.level.length()){
+			fieldOfView = new boolean[Dungeon.level.length()];
+		}
+		Dungeon.level.updateFieldOfView( this, fieldOfView );
+
+		throwItems();
+
+		//mob logic
+		enemy = chooseEnemy();
+
+		enemySeen = enemy != null && enemy.isAlive() && fieldOfView[enemy.pos] && enemy.invisible <= 0;
+		//end of char/mob logic
 
 		if (phase == 0){
 			if (Dungeon.hero.viewDistance >= Dungeon.level.distance(pos, Dungeon.hero.pos)) {
@@ -416,6 +432,8 @@ public class YogDzewa extends Mob {
 		immunities.add( Charm.class );
 		immunities.add( Sleep.class );
 		immunities.add( Vertigo.class );
+		immunities.add( Frost.class );
+		immunities.add( Paralysis.class );
 	}
 
 	private static final String PHASE = "phase";