diff --git a/src/main/java/baritone/bot/pathing/calc/AStarPathFinder.java b/src/main/java/baritone/bot/pathing/calc/AStarPathFinder.java
index 664934f7..c7e1d4ef 100644
--- a/src/main/java/baritone/bot/pathing/calc/AStarPathFinder.java
+++ b/src/main/java/baritone/bot/pathing/calc/AStarPathFinder.java
@@ -47,6 +47,7 @@ import baritone.bot.pathing.movement.movements.MovementDiagonal;
 import baritone.bot.pathing.movement.movements.MovementDownward;
 import baritone.bot.pathing.movement.movements.MovementTraverse;
 import baritone.bot.pathing.path.IPath;
+import baritone.bot.utils.Helper;
 import net.minecraft.client.Minecraft;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.math.BlockPos;
@@ -60,7 +61,7 @@ import java.util.Random;
  *
  * @author leijurv
  */
-public class AStarPathFinder extends AbstractNodeCostSearch {
+public class AStarPathFinder extends AbstractNodeCostSearch implements Helper {
 
     public static boolean slowPath = false;
 
@@ -186,7 +187,7 @@ public class AStarPathFinder extends AbstractNodeCostSearch {
             }
         }
         System.out.println("Even with a cost coefficient of " + COEFFICIENTS[COEFFICIENTS.length - 1] + ", I couldn't get more than " + bestDist + " blocks =(");
-        System.out.println("No path found =(");
+        displayChatMessageRaw("No path found =(");
         currentlyRunning = null;
         return Optional.empty();
     }
diff --git a/src/main/java/baritone/bot/pathing/movement/CalculationContext.java b/src/main/java/baritone/bot/pathing/movement/CalculationContext.java
index ed221888..52fa03b2 100644
--- a/src/main/java/baritone/bot/pathing/movement/CalculationContext.java
+++ b/src/main/java/baritone/bot/pathing/movement/CalculationContext.java
@@ -33,6 +33,7 @@ public class CalculationContext implements Helper {
 
     private final ToolSet toolSet;
     private final boolean hasWaterBucket;
+    private final boolean hasThrowaway;
 
     public CalculationContext() {
         this(new ToolSet());
@@ -41,6 +42,7 @@ public class CalculationContext implements Helper {
     public CalculationContext(ToolSet toolSet) {
         this.toolSet = toolSet;
         this.hasWaterBucket = InventoryPlayer.isHotbar(player().inventory.getSlotFor(STACK_BUCKET_WATER)) && !world().provider.isNether();
+        this.hasThrowaway = MovementHelper.throwaway(false);
     }
 
     public ToolSet getToolSet() {
@@ -50,4 +52,8 @@ public class CalculationContext implements Helper {
     public boolean hasWaterBucket() {
         return hasWaterBucket;
     }
+
+    public boolean hasThrowaway() {
+        return hasThrowaway;
+    }
 }
diff --git a/src/main/java/baritone/bot/pathing/movement/MovementHelper.java b/src/main/java/baritone/bot/pathing/movement/MovementHelper.java
index 2349f856..9547e044 100644
--- a/src/main/java/baritone/bot/pathing/movement/MovementHelper.java
+++ b/src/main/java/baritone/bot/pathing/movement/MovementHelper.java
@@ -49,7 +49,8 @@ public interface MovementHelper extends ActionCosts, Helper {
 
     List<Item> ACCEPTABLE_THROWAWAY_ITEMS = Arrays.asList(
             Item.getItemFromBlock(Blocks.DIRT),
-            Item.getItemFromBlock(Blocks.COBBLESTONE)
+            Item.getItemFromBlock(Blocks.COBBLESTONE),
+            Item.getItemFromBlock(Blocks.NETHERRACK)
     );
 
     static boolean avoidBreaking(BlockPos pos) {
@@ -94,7 +95,8 @@ public interface MovementHelper extends ActionCosts, Helper {
                 || block instanceof BlockCactus
                 || block instanceof BlockFire
                 || block instanceof BlockEndPortal
-                || block instanceof BlockWeb;
+                || block instanceof BlockWeb
+                || block instanceof BlockMagma;
     }
 
     /**
@@ -116,6 +118,9 @@ public interface MovementHelper extends ActionCosts, Helper {
         if (BlockStateInterface.isWater(block)) {
             return BlockStateInterface.isWater(pos.up()); // You can only walk on water if there is water above it
         }
+        if (block.equals(Blocks.MAGMA)) {
+            return false;
+        }
         return state.isBlockNormalCube() && !BlockStateInterface.isLava(block);
     }
 
@@ -188,13 +193,15 @@ public interface MovementHelper extends ActionCosts, Helper {
         mc.player.inventory.currentItem = ts.getBestSlot(b);
     }
 
-    static boolean switchtothrowaway() {
+    static boolean throwaway(boolean select) {
         EntityPlayerSP p = Minecraft.getMinecraft().player;
         NonNullList<ItemStack> inv = p.inventory.mainInventory;
         for (byte i = 0; i < 9; i++) {
             ItemStack item = inv.get(i);
             if (ACCEPTABLE_THROWAWAY_ITEMS.contains(item.getItem())) {
-                p.inventory.currentItem = i;
+                if (select) {
+                    p.inventory.currentItem = i;
+                }
                 return true;
             }
         }
@@ -245,16 +252,4 @@ public interface MovementHelper extends ActionCosts, Helper {
         }
         return null;
     }
-
-    static boolean hasthrowaway() {
-        EntityPlayerSP p = Minecraft.getMinecraft().player;
-        NonNullList<ItemStack> inv = p.inventory.mainInventory;
-        for (byte i = 0; i < 9; i++) {
-            ItemStack item = inv.get(i);
-            if (ACCEPTABLE_THROWAWAY_ITEMS.contains(item.getItem())) {
-                return true;
-            }
-        }
-        return false;
-    }
 }
diff --git a/src/main/java/baritone/bot/pathing/movement/movements/MovementTraverse.java b/src/main/java/baritone/bot/pathing/movement/movements/MovementTraverse.java
index 398c8a57..957f9d89 100644
--- a/src/main/java/baritone/bot/pathing/movement/movements/MovementTraverse.java
+++ b/src/main/java/baritone/bot/pathing/movement/movements/MovementTraverse.java
@@ -85,6 +85,9 @@ public class MovementTraverse extends Movement {
             }
             IBlockState pp0 = BlockStateInterface.get(positionsToPlace[0]);
             if (pp0.getBlock().equals(Blocks.AIR) || (!BlockStateInterface.isWater(pp0.getBlock()) && pp0.getBlock().isReplaceable(Minecraft.getMinecraft().world, positionsToPlace[0]))) {
+                if (!context.hasThrowaway()) {
+                    return COST_INF;
+                }
                 for (BlockPos against1 : against) {
                     if (BlockStateInterface.get(against1).isBlockNormalCube()) {
                         return WC + PLACE_ONE_BLOCK_COST + getTotalHardnessOfBlocksToBreak(context.getToolSet());
@@ -137,7 +140,7 @@ public class MovementTraverse extends Movement {
             wasTheBridgeBlockAlwaysThere = false;
             for (BlockPos against1 : against) {
                 if (BlockStateInterface.get(against1).isBlockNormalCube()) {
-                    if (!MovementHelper.switchtothrowaway()) { // get ready to place a throwaway block
+                    if (!MovementHelper.throwaway(true)) { // get ready to place a throwaway block
                         displayChatMessageRaw("bb pls get me some blocks. dirt or cobble");
                         return state;
                     }
@@ -163,7 +166,7 @@ public class MovementTraverse extends Movement {
             if (whereAmI.equals(dest)) {
                 // if we are in the block that we are trying to get to, we are sneaking over air and we need to place a block beneath us against the one we just walked off of
                 // Out.log(from + " " + to + " " + faceX + "," + faceY + "," + faceZ + " " + whereAmI);
-                if (!MovementHelper.switchtothrowaway()) {// get ready to place a throwaway block
+                if (!MovementHelper.throwaway(true)) {// get ready to place a throwaway block
                     displayChatMessageRaw("bb pls get me some blocks. dirt or cobble");
                     return state;
                 }