diff --git a/src/character.ts b/src/character.ts
index 20853c9..341ddc5 100644
--- a/src/character.ts
+++ b/src/character.ts
@@ -1,8 +1,12 @@
 import { parse as parseYaml, stringify as stringifyYaml } from 'yaml';
 import { readFile, writeFile, readdir } from 'fs/promises';
 import { join } from 'path';
+import * as string_decoder from "node:string_decoder";
 
 export interface GameCharacter {
+  fullName?: string;
+  playbook?: string;
+
   health: number;
   armor?: number;
   unstable?: boolean;
@@ -16,14 +20,14 @@ export interface GameCharacter {
   Tough?: number;
   Weird?: number;
 
-  color: number;
   defaultFacePath: string;
   additionalFaces?: GameCharacterFace[];
   activeFaceSets?: string[];
   moves?: GameCharacterMove[];
-  improvementsTaken?: string[];
-  improvementsAvailable?: string[];
-  improvementsAdvanced?: string[];
+  availableMoves?: GameCharacterMove[];
+  improvementsTaken?: TakenImprovement[];
+  improvementsAvailable?: AvailableImprovement[];
+  improvementsAdvanced?: AvailableImprovement[];
 }
 
 export enum GameAttribute {
@@ -47,6 +51,7 @@ export interface GameCharacterMoveBase {
   name: string;
   summary?: string;
   description?: string;
+  playbook?: string;
 }
 
 export interface GameCharacterPassiveMove extends GameCharacterMoveBase {
@@ -64,6 +69,56 @@ export interface GameCharacterRollableMove extends GameCharacterMoveBase {
   onMiss?: string;
 }
 
+export interface ImprovementBase {
+  type: string;
+}
+
+export interface AvailableAttributeBonusImprovement extends ImprovementBase {
+  type: GameAttribute|'attribute';
+  max: number;
+}
+
+export interface TakenAttributeBonusImprovement extends AvailableAttributeBonusImprovement {
+  type: GameAttribute;
+  from: number;
+  to: number;
+}
+
+export interface AvailableMoveImprovement extends ImprovementBase {
+  type: 'playbookMove'|'otherMove';
+}
+
+export interface TakenOtherPlaybookMoveImprovement extends AvailableMoveImprovement {
+  type: 'otherMove';
+  playbook: string;
+  name: string;
+}
+
+export interface TakenSamePlaybookMoveImprovement extends AvailableMoveImprovement {
+  type: 'playbookMove';
+  name: string;
+}
+
+export interface AvailableAdvanceBasicMoveImprovement extends ImprovementBase {
+  type: 'advance';
+}
+
+export interface TakenAdvanceBasicMoveImprovement extends AvailableAdvanceBasicMoveImprovement {
+  names: string[]
+}
+
+export interface LuckImprovement extends ImprovementBase {
+  type: 'luck'
+}
+
+export interface OtherImprovement extends ImprovementBase {
+  type: 'other';
+  text: string;
+}
+
+export type AvailableImprovement = AvailableMoveImprovement|AvailableAdvanceBasicMoveImprovement|AvailableAttributeBonusImprovement|LuckImprovement|OtherImprovement
+export type TakenImprovement = TakenSamePlaybookMoveImprovement|TakenOtherPlaybookMoveImprovement|TakenAdvanceBasicMoveImprovement|TakenAttributeBonusImprovement|LuckImprovement|OtherImprovement
+
 export type GameCharacterMove = GameCharacterPassiveMove | GameCharacterRollableMove;
 
 export interface FaceConditionBase {
diff --git a/src/commands/base.ts b/src/commands/base.ts
index 6198fd4..a520939 100644
--- a/src/commands/base.ts
+++ b/src/commands/base.ts
@@ -22,14 +22,28 @@ import { readFile } from 'fs/promises';
 import { join } from 'path';
 import { default as Sharp } from 'sharp';
 
-export const CharacterOptionTemplate = {
+export enum CharacterOptionCount {
+  Single = "single",
+  Multi = "multi",
+}
+
+export const SingleCharacterOptionTemplate = {
   name: 'character',
+  description: 'The character to operate on.',
+  required: false,
+  type: CommandOptionType.STRING,
+  autocomplete: true,
+  isCharacterOption: CharacterOptionCount.Single,
+} as const satisfies ApplicationCommandOptionAutocompletable & { isCharacterOption: CharacterOptionCount.Single };
+
+export const MultiCharacterOptionTemplate = {
+  name: 'characters',
   description: 'The character(s) to operate on.',
   required: false,
   type: CommandOptionType.STRING,
   autocomplete: true,
-  isCharacterOption: true
-} as const satisfies ApplicationCommandOptionAutocompletable & { isCharacterOption: true };
+  isCharacterOption: CharacterOptionCount.Multi,
+} as const satisfies ApplicationCommandOptionAutocompletable & { isCharacterOption: CharacterOptionCount.Multi };
 
 export interface CharacterDataBase {
   readonly success: boolean;
@@ -70,7 +84,7 @@ const NORMAL_STATUS_WIDTH = 1446;
 const enableStackedForTwoCharacters = false;
 
 export abstract class AbstractCharacterStatusCommand extends SlashCommand {
-  readonly characterOptions: (ApplicationCommandOption & { isCharacterOption: true })[];
+  readonly characterOptions: (ApplicationCommandOption & { isCharacterOption: CharacterOptionCount })[];
   readonly dataDir: string;
 
   protected constructor(creator: SlashCreator, opts: SlashCommandOptions & CharacterStatusOptions) {
@@ -78,8 +92,8 @@ export abstract class AbstractCharacterStatusCommand extends SlashCommand {
 
     this.dataDir = opts.dataDir;
     this.characterOptions = (opts.options?.filter(
-      (s) => 'isCharacterOption' in s && s.isCharacterOption === true && s.type === CommandOptionType.STRING
-    ) ?? []) as (ApplicationCommandOption & { isCharacterOption: true })[];
+      (s) => 'isCharacterOption' in s && (s.isCharacterOption === CharacterOptionCount.Multi || s.isCharacterOption === CharacterOptionCount.Single) && s.type === CommandOptionType.STRING
+    ) ?? []) as (ApplicationCommandOption & { isCharacterOption: CharacterOptionCount })[];
   }
 
   async autocomplete(ctx: AutocompleteContext): Promise<boolean> {
@@ -87,10 +101,11 @@ export abstract class AbstractCharacterStatusCommand extends SlashCommand {
     if (!option) {
       return ctx.sendResults([]);
     }
+    const isMulti =  option.isCharacterOption === CharacterOptionCount.Multi
     const party = await loadParty(this.dataDir);
     const defaultCharacter = party.defaultCharacters[ctx.user.id] || null;
     const activeParty = new Set(Array.isArray(party.activeParty) ? party.activeParty : []);
-    const completedNames = (ctx.options[option.name] as string).trimStart().split(nameDelimiter);
+    const completedNames = isMulti ? (ctx.options[option.name] as string).trimStart().split(nameDelimiter) : [ctx.options[option.name]];
     const completingName = completedNames.pop()!;
     const completingLowercase = completingName.toLowerCase();
     const characters = (await listCharacters(this.dataDir))
@@ -139,7 +154,7 @@ export abstract class AbstractCharacterStatusCommand extends SlashCommand {
     const selectedElements = new Set<string>();
     completedNames.forEach((entry) => {
       const trimmed = entry.trim();
-      if (trimmed === '*') {
+      if (trimmed === '*' && isMulti) {
         for (const partyMember of activeParty) {
           selectedElements.add(partyMember);
         }
@@ -154,7 +169,7 @@ export abstract class AbstractCharacterStatusCommand extends SlashCommand {
     return ctx.sendResults(
       [
         ...characters.map((s) => selectionPrefixValue + s).slice(0, 20),
-        ...(unselectedParty.size > 0 && activeParty.size > 1 && (partyName.includes(completingName) || completingName.trim() === '*')
+        ...(isMulti && unselectedParty.size > 0 && activeParty.size > 1 && (partyName.includes(completingName) || completingName.trim() === '*')
           ? [selectionPrefixValue + partyName]
           : [])
       ]
@@ -168,33 +183,31 @@ export abstract class AbstractCharacterStatusCommand extends SlashCommand {
     partyPromise: Promise<GameParty>
   ): Promise<[option: string, names: Set<string>][]> {
     const [party, allCharacters] = await Promise.all([partyPromise, listCharacters(this.dataDir)]);
+    function correctName(item: string): string {
+      if (allCharacters.includes(item)) {
+        return item;
+      } else {
+        const found = allCharacters.find((v) => item.toLowerCase() === v.toLowerCase());
+        if (found) {
+          return found;
+        } else {
+          return item;
+        }
+      }
+    }
     const activeParty = new Set(Array.isArray(party.activeParty) ? party.activeParty : []);
-    return this.characterOptions.map((o) =>
-      options[o.name] && typeof options[o.name] === 'string'
-        ? [
-            o.name,
-            new Set(
-              (options[o.name] as string)
-                .trim()
-                .split(nameDelimiter)
-                .flatMap((item) => {
-                  if (item === '*') {
-                    return Array.from(activeParty);
-                  } else if (allCharacters.includes(item)) {
-                    return [item];
-                  } else {
-                    const found = allCharacters.find((v) => item.toLowerCase() === v.toLowerCase());
-                    if (found) {
-                      return [found];
-                    } else {
-                      return [item];
-                    }
-                  }
-                })
-            )
-          ]
-        : [o.name, new Set()]
-    );
+    return this.characterOptions.map((o) => {
+      if (!options[o.name] || typeof options[o.name] !== 'string') {
+        return [o.name, new Set<string>()]
+      }
+      const isMulti = o.isCharacterOption === CharacterOptionCount.Multi
+      const trimmed = (options[o.name] as string).trim()
+      if (!isMulti) {
+        return [o.name, new Set<string>([correctName(trimmed)])]
+      }
+      return [o.name, new Set<string>(
+        trimmed.split(nameDelimiter).flatMap(item => item === '*' ? Array.from(activeParty) : [correctName(item)]))]
+    });
   }
 
   abstract process(
diff --git a/src/commands/experience.ts b/src/commands/experience.ts
index 06ba0b0..bcd2a88 100644
--- a/src/commands/experience.ts
+++ b/src/commands/experience.ts
@@ -1,7 +1,7 @@
 import { ApplicationCommandType, type CommandContext, CommandOptionType, type SlashCreator } from 'slash-create';
 import {
   AbstractCharacterStatusCommand,
-  CharacterOptionTemplate,
+  MultiCharacterOptionTemplate,
   type CharacterStatusOptions,
   type GameCharacterData,
   type LoadedCharacterData
@@ -17,8 +17,8 @@ export class ExperienceCharacterCommand extends AbstractCharacterStatusCommand {
       guildIDs: process.env.DEVELOPMENT_GUILD_ID,
       options: [
         {
-          ...CharacterOptionTemplate,
-          name: 'character',
+          ...MultiCharacterOptionTemplate,
+          name: 'characters',
           description: 'The name of the character(s) to grant EXP to or remove EXP from.',
           required: true
         },
@@ -47,7 +47,7 @@ export class ExperienceCharacterCommand extends AbstractCharacterStatusCommand {
     const delta = ctx.options['delta'] ?? 1;
     const description: string[] = [];
     const result: LoadedCharacterData[] = [];
-    for (const character of characters.get('character')!) {
+    for (const character of characters.get('characters')!) {
       if (!character.success) {
         description.push(
           `**${character.name}** ${delta >= 0 ? 'gained' : 'lost'} ${Math.abs(delta)} EXP${delta >= 0 ? '!' : '.'}`
diff --git a/src/commands/harm.ts b/src/commands/harm.ts
index 702250b..d61bd3f 100644
--- a/src/commands/harm.ts
+++ b/src/commands/harm.ts
@@ -1,7 +1,7 @@
 import { ApplicationCommandType, type CommandContext, CommandOptionType, type SlashCreator } from 'slash-create';
 import {
   AbstractCharacterStatusCommand,
-  CharacterOptionTemplate,
+  MultiCharacterOptionTemplate,
   type CharacterStatusOptions,
   type GameCharacterData,
   type LoadedCharacterData
@@ -17,7 +17,8 @@ export class HarmCharacterCommand extends AbstractCharacterStatusCommand {
       guildIDs: process.env.DEVELOPMENT_GUILD_ID,
       options: [
         {
-          ...CharacterOptionTemplate,
+          ...MultiCharacterOptionTemplate,
+          name: 'characters',
           description: 'The name of the character(s) to harm.',
           required: true
         },
@@ -59,7 +60,7 @@ export class HarmCharacterCommand extends AbstractCharacterStatusCommand {
     const makeUnstable: boolean | null = ctx.options['destabilize'] ?? null;
     const description: string[] = [];
     const result: LoadedCharacterData[] = [];
-    for (const character of characters.get('character')!) {
+    for (const character of characters.get('characters')!) {
       if (!character.success) {
         description.push(
           `**${character.name}** took ${baseDamage} Harm${piercing ? ' ignore-armour' : ''}${
diff --git a/src/commands/heal.ts b/src/commands/heal.ts
index 2899660..a0fa07f 100644
--- a/src/commands/heal.ts
+++ b/src/commands/heal.ts
@@ -1,7 +1,7 @@
 import { ApplicationCommandType, type CommandContext, CommandOptionType, type SlashCreator } from 'slash-create';
 import {
   AbstractCharacterStatusCommand,
-  CharacterOptionTemplate,
+  MultiCharacterOptionTemplate,
   type CharacterStatusOptions,
   type GameCharacterData,
   type LoadedCharacterData
@@ -17,8 +17,8 @@ export class HealCharacterCommand extends AbstractCharacterStatusCommand {
       guildIDs: process.env.DEVELOPMENT_GUILD_ID,
       options: [
         {
-          ...CharacterOptionTemplate,
-          name: 'character',
+          ...MultiCharacterOptionTemplate,
+          name: 'characters',
           description: 'The name of the character(s) to heal.',
           required: true
         },
@@ -53,7 +53,7 @@ export class HealCharacterCommand extends AbstractCharacterStatusCommand {
     const stabilize: boolean = ctx.options['stabilize'] ?? false;
     const description: string[] = [];
     const result: LoadedCharacterData[] = [];
-    for (const character of characters.get('character')!) {
+    for (const character of characters.get('characters')!) {
       if (!character.success) {
         description.push(
           `**${character.name}** healed ${healing} Harm${healing > 0 ? '!' : '.'}${
diff --git a/src/commands/levelup.ts b/src/commands/levelup.ts
new file mode 100644
index 0000000..a0716ee
--- /dev/null
+++ b/src/commands/levelup.ts
@@ -0,0 +1,43 @@
+import { ApplicationCommandType, type CommandContext, CommandOptionType, type SlashCreator } from 'slash-create';
+import {
+  AbstractCharacterStatusCommand,
+  type CharacterStatusOptions,
+  type GameCharacterData,
+  type LoadedCharacterData, SingleCharacterOptionTemplate
+} from './base.js';
+
+export class LevelUpCharacterCommand extends AbstractCharacterStatusCommand {
+  constructor(creator: SlashCreator, opts: CharacterStatusOptions) {
+    super(creator, {
+      ...opts,
+      name: 'levelup',
+      description: 'Levels up the given character.',
+      type: ApplicationCommandType.CHAT_INPUT,
+      guildIDs: process.env.DEVELOPMENT_GUILD_ID,
+      options: [
+        {
+          ...SingleCharacterOptionTemplate,
+          name: 'character',
+          description: 'The name of the character to level up. This character must exist.',
+          required: true
+        },
+      ]
+    });
+  }
+
+  async process(
+    ctx: CommandContext,
+    { characters }: { characters: Map<string, readonly GameCharacterData[]> }
+  ): Promise<
+    | readonly [string, LoadedCharacterData[]]
+    | readonly [string, LoadedCharacterData]
+    | readonly LoadedCharacterData[]
+    | LoadedCharacterData
+    | string
+  > {
+    const characterList = characters.get("character")
+    if (!characterList || characterList.length === 0) {
+      return
+    }
+  }
+}
diff --git a/src/commands/luck.ts b/src/commands/luck.ts
index 2c92308..93166ec 100644
--- a/src/commands/luck.ts
+++ b/src/commands/luck.ts
@@ -1,7 +1,7 @@
 import { ApplicationCommandType, type CommandContext, CommandOptionType, type SlashCreator } from 'slash-create';
 import {
   AbstractCharacterStatusCommand,
-  CharacterOptionTemplate,
+  MultiCharacterOptionTemplate,
   type CharacterStatusOptions,
   type GameCharacterData,
   type LoadedCharacterData
@@ -17,8 +17,8 @@ export class LuckCharacterCommand extends AbstractCharacterStatusCommand {
       guildIDs: process.env.DEVELOPMENT_GUILD_ID,
       options: [
         {
-          ...CharacterOptionTemplate,
-          name: 'character',
+          ...MultiCharacterOptionTemplate,
+          name: 'characters',
           description: 'The name of the character(s) to grant luck to or remove luck from.',
           required: true
         },
@@ -47,7 +47,7 @@ export class LuckCharacterCommand extends AbstractCharacterStatusCommand {
     const delta: number = ctx.options['delta'] ?? -1;
     const description: string[] = [];
     const result: LoadedCharacterData[] = [];
-    for (const character of characters.get('character')!) {
+    for (const character of characters.get('characters')!) {
       if (!character.success) {
         description.push(
           `**${character.name}** ${delta > 0 ? 'recovered' : 'spent'} ${Math.abs(delta)} Luck${delta !== 0 ? '!' : '.'}`
diff --git a/src/commands/party.ts b/src/commands/party.ts
index 81310a9..e1f49e9 100644
--- a/src/commands/party.ts
+++ b/src/commands/party.ts
@@ -1,6 +1,6 @@
 import {
   AbstractCharacterStatusCommand,
-  CharacterOptionTemplate,
+  MultiCharacterOptionTemplate,
   type CharacterStatusOptions,
   type GameCharacterData,
   type LoadedCharacterData
@@ -18,7 +18,7 @@ export class PartyCommand extends AbstractCharacterStatusCommand {
       guildIDs: process.env.DEVELOPMENT_GUILD_ID,
       options: [
         {
-          ...CharacterOptionTemplate,
+          ...MultiCharacterOptionTemplate,
           name: 'characters',
           description: 'The name of the character(s) to become the current party. If not set, shows the party instead.',
           required: false
diff --git a/src/commands/status.ts b/src/commands/status.ts
index 7f6cbf4..307049c 100644
--- a/src/commands/status.ts
+++ b/src/commands/status.ts
@@ -1,6 +1,6 @@
 import { ApplicationCommandType, type CommandContext, type SlashCreator } from 'slash-create';
 import {
-  CharacterOptionTemplate,
+  MultiCharacterOptionTemplate,
   AbstractCharacterStatusCommand,
   type GameCharacterData,
   type LoadedCharacterData,
@@ -17,8 +17,8 @@ export class CharacterStatusCommand extends AbstractCharacterStatusCommand {
       guildIDs: process.env.DEVELOPMENT_GUILD_ID,
       options: [
         {
-          ...CharacterOptionTemplate,
-          name: 'character',
+          ...MultiCharacterOptionTemplate,
+          name: 'characters',
           description: 'The name of the character(s) to get the status of.',
           required: true
         }
@@ -36,6 +36,6 @@ export class CharacterStatusCommand extends AbstractCharacterStatusCommand {
     | LoadedCharacterData
     | string
   > {
-    return characters.get('character')!.flatMap((x) => (x.success ? [x] : []));
+    return characters.get('characters')!.flatMap((x) => (x.success ? [x] : []));
   }
 }