diff --git a/src/main/scala/me/skymc/taboolib/common/nms/NMSHandlerImpl.java b/src/main/scala/me/skymc/taboolib/common/nms/NMSHandlerImpl.java
index 078d16f..1126f35 100644
--- a/src/main/scala/me/skymc/taboolib/common/nms/NMSHandlerImpl.java
+++ b/src/main/scala/me/skymc/taboolib/common/nms/NMSHandlerImpl.java
@@ -192,7 +192,7 @@ public class NMSHandlerImpl extends NMSHandler {
         } catch (Throwable t) {
             t.printStackTrace();
         }
-        return CraftItemStack.asBukkitCopy((net.minecraft.server.v1_8_R3.ItemStack) nmsItem);
+        return  CraftItemStack.asBukkitCopy((net.minecraft.server.v1_8_R3.ItemStack) nmsItem);
     }
 
     @Override
@@ -229,7 +229,14 @@ public class NMSHandlerImpl extends NMSHandler {
             case 9:
                 Object nmsList = new NBTTagList();
                 for (me.skymc.taboolib.common.nms.nbt.NBTBase value : base.asList()) {
-                    ((List) SimpleReflection.getFieldValue(NBTTagList.class, nmsList, "list")).add(toNBTBase(value));
+                    // 1.14+
+                    if (TabooLib.getVersionNumber() >= 11400) {
+                        ((net.minecraft.server.v1_14_R1.NBTTagList) nmsList).add(((net.minecraft.server.v1_14_R1.NBTTagList) nmsList).size(), (net.minecraft.server.v1_14_R1.NBTBase) toNBTBase(value));
+                    }
+                    // 1.13-
+                    else {
+                        ((NBTTagList) nmsList).add((NBTBase) toNBTBase(value));
+                    }
                 }
                 return nmsList;
             case 10:
diff --git a/src/main/scala/me/skymc/taboolib/inventory/ItemUtils.java b/src/main/scala/me/skymc/taboolib/inventory/ItemUtils.java
index 428e52c..4e2e131 100644
--- a/src/main/scala/me/skymc/taboolib/inventory/ItemUtils.java
+++ b/src/main/scala/me/skymc/taboolib/inventory/ItemUtils.java
@@ -160,7 +160,9 @@ public class ItemUtils {
     }
 
     public static List<String> asString(List<String> args, Player placeholderPlayer) {
-        IntStream.range(0, args.size()).forEach(i -> args.set(i, asString(args.get(i), placeholderPlayer)));
+        for (int i = 0; i < args.size(); i++) {
+            args.set(i, asString(args.get(i), placeholderPlayer));
+        }
         return args;
     }
 
@@ -392,7 +394,7 @@ public class ItemUtils {
                                 a.put("Amount", new NBTBase(NumberConversions.toDouble(num.substring(0, num.length() - 1)) / 100D));
                                 a.put("Operation", new NBTBase(1));
                             } else {
-                                a.put("Amount", new NBTBase(NumberConversions.toDouble(num) / 100D));
+                                a.put("Amount", new NBTBase(NumberConversions.toDouble(num)));
                                 a.put("Operation", new NBTBase(0));
                             }
                             a.put("AttributeName", new NBTBase(asAttribute(name)));