diff --git a/ItemChanger/Deployers/EnemyBlockerDeployer.cs b/ItemChanger/Deployers/EnemyBlockerDeployer.cs
new file mode 100644
index 00000000..b33154af
--- /dev/null
+++ b/ItemChanger/Deployers/EnemyBlockerDeployer.cs
@@ -0,0 +1,19 @@
+namespace ItemChanger.Deployers
+{
+    /// <summary>
+    /// Deployer which creates a region which enemies cannot enter.
+    /// </summary>
+    public record EnemyBlockerDeployer : Deployer
+    {
+        public float Width { get; init; }
+        public float Height { get; init; }
+
+        public override GameObject Instantiate()
+        {
+            GameObject go = new() { layer = 15 };
+            BoxCollider2D box = go.AddComponent<BoxCollider2D>();
+            box.size = new(Width, Height);
+            return go;
+        }
+    }
+}
diff --git a/ItemChanger/Deployers/HintBoxDeployer.cs b/ItemChanger/Deployers/HintBoxDeployer.cs
new file mode 100644
index 00000000..af5164a7
--- /dev/null
+++ b/ItemChanger/Deployers/HintBoxDeployer.cs
@@ -0,0 +1,22 @@
+using ItemChanger.Components;
+
+namespace ItemChanger.Deployers
+{
+    /// <summary>
+    /// Deployer which creates a HintBox, a region which displays a dream dialogue message when the hero enters.
+    /// </summary>
+    public record HintBoxDeployer : Deployer
+    {
+        public float Width { get; init; } = 5f;
+        public float Height { get; init; } = 5f;
+        public IString Text { get; init; }
+
+
+        public override GameObject Instantiate()
+        {
+            HintBox box = HintBox.Create(new Vector2(X, Y), new Vector2(Width, Height));
+            box.GetDisplayText = Text.GetValue;
+            return box.gameObject;
+        }
+    }
+}
diff --git a/ItemChanger/Tags/SetIBoolOnGiveTag.cs b/ItemChanger/Tags/SetIBoolOnGiveTag.cs
new file mode 100644
index 00000000..d8102e6d
--- /dev/null
+++ b/ItemChanger/Tags/SetIBoolOnGiveTag.cs
@@ -0,0 +1,57 @@
+namespace ItemChanger.Tags
+{
+    /// <summary>
+    /// Tag which sets an IWriteableBool when its parent item is given.
+    /// <br/>If attached to a location or placement, sets the bool when VisitState.ObtainedAnyItem is first set on the placement.
+    /// </summary>
+    public class SetIBoolOnGiveTag : Tag
+    {
+        public IWritableBool Bool;
+        public bool value = true;
+
+        public override void Load(object parent)
+        {
+            if (parent is AbstractItem item)
+            {
+                item.OnGive += OnGive;
+            }
+            else
+            {
+                AbstractPlacement placement = parent as AbstractPlacement ?? (parent as AbstractLocation)?.Placement;
+                if (placement is not null)
+                {
+                    placement.OnVisitStateChanged += OnVisitStateChanged;
+                }
+            }
+        }
+
+        public override void Unload(object parent)
+        {
+            if (parent is AbstractItem item)
+            {
+                item.OnGive -= OnGive;
+            }
+            else
+            {
+                AbstractPlacement placement = parent as AbstractPlacement ?? (parent as AbstractLocation)?.Placement;
+                if (placement is not null)
+                {
+                    placement.OnVisitStateChanged -= OnVisitStateChanged;
+                }
+            }
+        }
+
+        private void OnGive(ReadOnlyGiveEventArgs obj)
+        {
+            Bool.Value = value;
+        }
+
+        private void OnVisitStateChanged(VisitStateChangedEventArgs obj)
+        {
+            if (obj.NewFlags.HasFlag(VisitState.ObtainedAnyItem) && !obj.Orig.HasFlag(VisitState.ObtainedAnyItem))
+            {
+                Bool.Value = value;
+            }
+        }
+    }
+}
diff --git a/ItemChanger/Tags/SetPDBoolOnGiveTag.cs b/ItemChanger/Tags/SetPDBoolOnGiveTag.cs
index faef34ea..ed9b3e43 100644
--- a/ItemChanger/Tags/SetPDBoolOnGiveTag.cs
+++ b/ItemChanger/Tags/SetPDBoolOnGiveTag.cs
@@ -4,6 +4,7 @@
     /// Tag which adds setting a PlayerData bool as a side effect to an item.
     /// <br/>Be warned that this effect is tied to the tag's parent, regardless of how it is modified during Give.
     /// </summary>
+    [Obsolete("Use SetIBoolOnGiveTag instead.")]
     public class SetPDBoolOnGiveTag : Tag
     {
         public string fieldName;
diff --git a/ItemChanger/Util/TabletUtility.cs b/ItemChanger/Util/TabletUtility.cs
index 2c3251b2..26c7898b 100644
--- a/ItemChanger/Util/TabletUtility.cs
+++ b/ItemChanger/Util/TabletUtility.cs
@@ -17,7 +17,7 @@ public static GameObject InstantiateTablet(string tabletName)
             GameObject lit_tablet = tablet.transform.Find("lit_tablet").gameObject; // doesn't appear after instantiation, for some reason
             GameObject lit = new GameObject();
             lit.transform.SetParent(tablet.transform);
-            lit.transform.localPosition = new Vector3(-0.1f, 0.1f, -1.8f);
+            lit.transform.localPosition = new Vector3(-0.1f, 0.1f, -3f);
             lit.transform.localScale = Vector3.one;
             lit.AddComponent<SpriteRenderer>().sprite = lit_tablet.GetComponent<SpriteRenderer>().sprite;
             lit.GetComponent<SpriteRenderer>().color = new Color(1, 1, 1, 0.8f);
diff --git a/ItemChanger/VanillaShops.cs b/ItemChanger/VanillaShops.cs
index 9d8a3148..709a1b04 100644
--- a/ItemChanger/VanillaShops.cs
+++ b/ItemChanger/VanillaShops.cs
@@ -1,34 +1,38 @@
-namespace ItemChanger
+/*
+using ItemChanger.Locations;
+using ItemChanger.Placements;
+using ItemChanger.Tags;
+
+namespace ItemChanger
 {
     static class VanillaShops
     {
-        /*
         public static AbstractPlacement[] GetVanillaShops()
         {
             AbstractItem mask1 = Finder.GetItem(ItemNames.Mask_Shard);
             mask1.AddTag<CostTag>().Cost = Cost.NewGeoCost(150);
-            mask1.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slyShellFrag1);
+            mask1.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slyShellFrag1));
 
             AbstractItem mask2 = Finder.GetItem(ItemNames.Mask_Shard);
             mask2.AddTag<CostTag>().Cost = Cost.NewGeoCost(500);
-            mask2.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slyShellFrag2);
+            mask2.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slyShellFrag2));
             mask2.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.slyShellFrag1);
 
             AbstractItem mask3 = Finder.GetItem(ItemNames.Mask_Shard);
             mask3.AddTag<CostTag>().Cost = Cost.NewGeoCost(800);
-            mask3.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slyShellFrag3);
+            mask3.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slyShellFrag3));
             mask3.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.slyShellFrag2);
             mask3.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.gaveSlykey);
 
             AbstractItem mask4 = Finder.GetItem(ItemNames.Mask_Shard);
             mask4.AddTag<CostTag>().Cost = Cost.NewGeoCost(1500);
-            mask4.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slyShellFrag4);
+            mask4.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slyShellFrag4));
             mask4.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.slyShellFrag3);
             mask4.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.gaveSlykey);
 
             AbstractItem vessel1 = Finder.GetItem(ItemNames.Vessel_Fragment);
             vessel1.AddTag<CostTag>().Cost = Cost.NewGeoCost(550);
-            vessel1.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slyVesselFrag1);
+            vessel1.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slyVesselFrag1));
 
             AbstractItem vessel2 = Finder.GetItem(ItemNames.Vessel_Fragment);
             vessel2.AddTag<CostTag>().Cost = Cost.NewGeoCost(900);
@@ -58,34 +62,34 @@ public static AbstractPlacement[] GetVanillaShops()
 
             AbstractItem rancid_egg = Finder.GetItem(ItemNames.Rancid_Egg);
             rancid_egg.AddTag<CostTag>().Cost = Cost.NewGeoCost(60);
-            rancid_egg.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slyRancidEgg);
+            rancid_egg.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slyRancidEgg));
 
             AbstractItem simple_key = Finder.GetItem(ItemNames.Simple_Key);
             simple_key.AddTag<CostTag>().Cost = Cost.NewGeoCost(950);
-            simple_key.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.slySimpleKey);
+            simple_key.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.slySimpleKey));
 
 
-            AbstractPlacement sly = new ShopPlacement
+            AbstractPlacement sly = new ShopPlacement(LocationNames.Sly)
             {
                 Location = Finder.GetLocation(LocationNames.Sly) as ShopLocation,
-                Items = new List<AbstractItem>
-                {
-                    mask1,
-                    mask2,
-                    mask3,
-                    mask4,
-                    vessel1,
-                    vessel2,
-                    elegant_key,
-                    lantern,
-                    gathering_swarm,
-                    stalwart_shell,
-                    heavy_blow,
-                    sprintmaster,
-                    rancid_egg,
-                    simple_key,
-                },
-            };
+            }
+            .Add(new List<AbstractItem>
+            {
+                mask1,
+                mask2,
+                mask3,
+                mask4,
+                vessel1,
+                vessel2,
+                elegant_key,
+                lantern,
+                gathering_swarm,
+                stalwart_shell,
+                heavy_blow,
+                sprintmaster,
+                rancid_egg,
+                simple_key,
+            });
 
 
             AbstractItem wayward_compass = Finder.GetItem(ItemNames.Wayward_Compass);
@@ -201,40 +205,40 @@ public static AbstractPlacement[] GetVanillaShops()
             gleaming_marker.AddTag<CostTag>().Cost = Cost.NewGeoCost(210);
             gleaming_marker.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.hasDash);
 
-            AbstractPlacement iselda = new ShopPlacement
+            AbstractPlacement iselda = new ShopPlacement(LocationNames.Iselda)
             {
                 Location = Finder.GetLocation(LocationNames.Iselda) as ShopLocation,
-                Items = new List<AbstractItem>
-                {
-                    wayward_compass,
-                    quill,
-                    crossroads_map,
-                    greenpath_map,
-                    canyon_map,
-                    wastes_map,
-                    city_map,
-                    waterways_map,
-                    mines_map,
-                    rg_map,
-                    cliffs_map,
-                    deepnest_map,
-                    edge_map,
-                    gardens_map,
-                    basin_map,
-                    bench_pin,
-                    cocoon_pin,
-                    root_pin,
-                    warrior_pin,
-                    vendor_pin,
-                    stag_pin,
-                    tram_pin,
-                    spa_pin,
-                    scarab_marker,
-                    shell_marker,
-                    token_marker,
-                    gleaming_marker
-                },
-            };
+            }
+            .Add(new List<AbstractItem>
+            {
+                wayward_compass,
+                quill,
+                crossroads_map,
+                greenpath_map,
+                canyon_map,
+                wastes_map,
+                city_map,
+                waterways_map,
+                mines_map,
+                rg_map,
+                cliffs_map,
+                deepnest_map,
+                edge_map,
+                gardens_map,
+                basin_map,
+                bench_pin,
+                cocoon_pin,
+                root_pin,
+                warrior_pin,
+                vendor_pin,
+                stag_pin,
+                tram_pin,
+                spa_pin,
+                scarab_marker,
+                shell_marker,
+                token_marker,
+                gleaming_marker
+            });
 
             AbstractItem fragile_heart = Finder.GetItem(ItemNames.Fragile_Heart);
             fragile_heart.AddTag<CostTag>().Cost = Cost.NewGeoCost(350);
@@ -263,19 +267,19 @@ public static AbstractPlacement[] GetVanillaShops()
             repair_strength.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.brokenCharm_25);
             //repair_strength.AddTag<PersistentItemTag>().Persistence = Persistence.Persistent;
 
-            AbstractPlacement leg_eater = new ShopPlacement
+            AbstractPlacement leg_eater = new ShopPlacement(LocationNames.Leg_Eater)
             {
                 Location = Finder.GetLocation(LocationNames.Leg_Eater) as ShopLocation,
-                Items = new List<AbstractItem>
-                {
-                    fragile_heart,
-                    repair_heart,
-                    fragile_greed,
-                    repair_greed,
-                    fragile_strength,
-                    repair_strength
-                },
-            };
+            }
+            .Add(new List<AbstractItem>
+            {
+                fragile_heart,
+                repair_heart,
+                fragile_greed,
+                repair_greed,
+                fragile_strength,
+                repair_strength
+            });
 
             AbstractItem lifeblood_heart = Finder.GetItem(ItemNames.Lifeblood_Heart);
             lifeblood_heart.AddTag<CostTag>().Cost = Cost.NewGeoCost(250);
@@ -294,45 +298,45 @@ public static AbstractPlacement[] GetVanillaShops()
 
             AbstractItem notch1 = Finder.GetItem(ItemNames.Charm_Notch);
             notch1.AddTag<CostTag>().Cost = Cost.NewGeoCost(120)
-                + new PDIntCost { fieldName = nameof(PlayerData.charmsOwned), amount = 5, uiText = "Requires 5 charms" };
-            notch1.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.salubraNotch1);
+                + new PDIntCost(5, nameof(PlayerData.charmsOwned), "Requires 5 charms");
+            notch1.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.salubraNotch1));
 
             AbstractItem notch2 = Finder.GetItem(ItemNames.Charm_Notch);
             notch2.AddTag<CostTag>().Cost = Cost.NewGeoCost(500)
-                + new PDIntCost { fieldName = nameof(PlayerData.charmsOwned), amount = 10, uiText = "Requires 10 charms" };
-            notch2.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.salubraNotch2);
+                + new PDIntCost(10, nameof(PlayerData.charmsOwned), "Requires 10 charms");
+            notch2.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.salubraNotch2));
 
             AbstractItem notch3 = Finder.GetItem(ItemNames.Charm_Notch);
             notch3.AddTag<CostTag>().Cost = Cost.NewGeoCost(900)
-                + new PDIntCost { fieldName = nameof(PlayerData.charmsOwned), amount = 18, uiText = "Requires 18 charms" };
-            notch3.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.salubraNotch3);
+                + new PDIntCost (18, nameof(PlayerData.charmsOwned), "Requires 18 charms");
+            notch3.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.salubraNotch3));
 
             AbstractItem notch4 = Finder.GetItem(ItemNames.Charm_Notch);
             notch4.AddTag<CostTag>().Cost = Cost.NewGeoCost(120)
-                + new PDIntCost { fieldName = nameof(PlayerData.charmsOwned), amount = 25, uiText = "Requires 25 charms" };
-            notch4.AddTag<SetPDBoolOnGiveTag>().fieldName = nameof(PlayerData.salubraNotch4);
+                + new PDIntCost (25, nameof(PlayerData.charmsOwned), "Requires 25 charms");
+            notch4.AddTag<SetIBoolOnGiveTag>().Bool = new PDBool(nameof(PlayerData.salubraNotch4));
 
             AbstractItem blessing = Finder.GetItem(ItemNames.Salubras_Blessing);
             blessing.AddTag<CostTag>().Cost = Cost.NewGeoCost(800);
             blessing.AddTag<PDBoolShopReqTag>().fieldName = nameof(PlayerData.salubraNotch4);
 
-            AbstractPlacement salubra = new ShopPlacement
+            AbstractPlacement salubra = new ShopPlacement(LocationNames.Salubra)
             {
                 Location = Finder.GetLocation(LocationNames.Salubra) as ShopLocation,
-                Items = new List<AbstractItem>
-                {
-                    lifeblood_heart,
-                    longnail,
-                    steady_body,
-                    shaman_stone,
-                    quick_focus,
-                    notch1,
-                    notch2,
-                    notch3,
-                    notch4,
-                    blessing
-                },
-            };
+            }
+            .Add(new List<AbstractItem>
+            {
+                lifeblood_heart,
+                longnail,
+                steady_body,
+                shaman_stone,
+                quick_focus,
+                notch1,
+                notch2,
+                notch3,
+                notch4,
+                blessing
+            });
 
             return new[]
             {
@@ -344,6 +348,6 @@ public static void Print()
         {
             Finder.Serialize("vanilla.json", GetVanillaShops());
         }
-        */
     }
 }
+*/