diff --git a/common/src/main/java/net/william278/husksync/command/PluginCommand.java b/common/src/main/java/net/william278/husksync/command/PluginCommand.java
index b1eda665..b1b754d0 100644
--- a/common/src/main/java/net/william278/husksync/command/PluginCommand.java
+++ b/common/src/main/java/net/william278/husksync/command/PluginCommand.java
@@ -22,6 +22,7 @@ package net.william278.husksync.command;
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
 import net.william278.husksync.HuskSync;
+import net.william278.husksync.data.Identifier;
 import net.william278.husksync.user.CommandUser;
 import net.william278.husksync.user.User;
 import net.william278.uniform.BaseCommand;
@@ -99,6 +100,18 @@ public abstract class PluginCommand extends Command {
         }, (context, builder) -> builder.buildFuture());
     }
 
+    @NotNull
+    protected <S> ArgumentElement<S, Identifier> identifier(@NotNull String name) {
+        return new ArgumentElement<>(name, reader -> {
+            final String prefixed = !name.contains(":") ? "husksync:%s".formatted(name) : name;
+            return plugin.getIdentifier(prefixed).orElseThrow(() -> CommandSyntaxException.
+                    BUILT_IN_EXCEPTIONS.dispatcherUnknownArgument().createWithContext(reader));
+        }, (context, builder) -> {
+            plugin.getRegisteredDataTypes().stream().map(d -> d.getKey().asString()).forEach(builder::suggest);
+            return builder.buildFuture();
+        });
+    }
+
     public enum Type {
 
         HUSKSYNC_COMMAND(HuskSyncCommand::new),
diff --git a/common/src/main/java/net/william278/husksync/data/Data.java b/common/src/main/java/net/william278/husksync/data/Data.java
index 46074204..51d62033 100644
--- a/common/src/main/java/net/william278/husksync/data/Data.java
+++ b/common/src/main/java/net/william278/husksync/data/Data.java
@@ -29,6 +29,7 @@ import lombok.experimental.Accessors;
 import net.kyori.adventure.key.Key;
 import net.william278.husksync.HuskSync;
 import net.william278.husksync.user.OnlineUser;
+import org.apache.commons.text.WordUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -146,6 +147,12 @@ public interface Data {
                       @SerializedName("show_particles") boolean showParticles,
                       @SerializedName("has_icon") boolean hasIcon) {
 
+            @NotNull
+            private String asString() {
+                return "[❌] %s %s (⏰ %d:%02d)".formatted(WordUtils.capitalizeFully(type()),
+                        amplifier(), duration() / (60 * 1000), (duration() / 1000) % 60);
+            }
+
         }
 
     }
@@ -167,6 +174,7 @@ public interface Data {
 
         void setCompleted(@NotNull List<Advancement> completed);
 
+        @NoArgsConstructor(access = AccessLevel.PRIVATE)
         class Advancement {
             @SerializedName("key")
             private String key;
@@ -179,10 +187,6 @@ public interface Data {
                 this.completedCriteria = adaptDateMap(completedCriteria);
             }
 
-            @SuppressWarnings("unused")
-            private Advancement() {
-            }
-
             @NotNull
             public static Advancement adapt(@NotNull String key, @NotNull Map<String, Date> completedCriteria) {
                 return new Advancement(key, completedCriteria);