diff --git a/src/errors/Messages.js b/src/errors/Messages.js
index e0808b8..c4c8b54 100644
--- a/src/errors/Messages.js
+++ b/src/errors/Messages.js
@@ -197,6 +197,10 @@ const Messages = {
   INVALID_REMOTE_AUTH_URL: 'Invalid remote auth URL (https://discord.com/ra/{hash})',
   INVALID_URL: url =>
     `Invalid URL: ${url}.\nMake sure you are using a valid URL (https://discord.com/oauth2/authorize?...)`,
+
+  NITRO_REQUIRED: 'This feature is only available for Nitro users.',
+  NITRO_BOOST_REQUIRED: feature => `This feature (${feature}) is only available for Nitro Boost users.`,
+  ONLY_ME: 'This feature is only available for self.',
 };
 
 for (const [name, message] of Object.entries(Messages)) register(name, message);
diff --git a/src/managers/GuildMemberManager.js b/src/managers/GuildMemberManager.js
index eaf2f04..7b329cd 100644
--- a/src/managers/GuildMemberManager.js
+++ b/src/managers/GuildMemberManager.js
@@ -9,6 +9,7 @@ const BaseGuildVoiceChannel = require('../structures/BaseGuildVoiceChannel');
 const { GuildMember } = require('../structures/GuildMember');
 const { Role } = require('../structures/Role');
 const { Events, Opcodes } = require('../util/Constants');
+const DataResolver = require('../util/DataResolver');
 const SnowflakeUtil = require('../util/SnowflakeUtil');
 
 /**
@@ -236,6 +237,9 @@ class GuildMemberManager extends CachedManager {
    * (if they are connected to voice), or `null` if you want to disconnect them from voice
    * @property {DateResolvable|null} [communicationDisabledUntil] The date or timestamp
    * for the member's communication to be disabled until. Provide `null` to enable communication again.
+   * @property {?(BufferResolvable|Base64Resolvable)} [avatar] The new guild avatar
+   * @property {?(BufferResolvable|Base64Resolvable)} [banner] The new guild banner
+   * @property {?string} [bio] The new guild about me
    */
 
   /**
@@ -268,11 +272,22 @@ class GuildMemberManager extends CachedManager {
     _data.communication_disabled_until =
       _data.communicationDisabledUntil && new Date(_data.communicationDisabledUntil).toISOString();
 
+    // Avatar, banner, bio
+    if (typeof _data.avatar !== 'undefined') {
+      _data.avatar = await DataResolver.resolveImage(_data.avatar);
+    }
+    if (typeof _data.banner !== 'undefined') {
+      _data.banner = await DataResolver.resolveImage(_data.banner);
+    }
+
     let endpoint = this.client.api.guilds(this.guild.id);
     if (id === this.client.user.id) {
       const keys = Object.keys(data);
-      if (keys.length === 1 && keys[0] === 'nick') endpoint = endpoint.members('@me');
-      else endpoint = endpoint.members(id);
+      if (keys.length === 1 && ['nick', 'avatar', 'banner', 'bio'].includes(keys[0])) {
+        endpoint = endpoint.members('@me');
+      } else {
+        endpoint = endpoint.members(id);
+      }
     } else {
       endpoint = endpoint.members(id);
     }
diff --git a/src/structures/ClientUser.js b/src/structures/ClientUser.js
index 949f404..61a2f0e 100644
--- a/src/structures/ClientUser.js
+++ b/src/structures/ClientUser.js
@@ -104,6 +104,8 @@ class ClientUser extends User {
    * @typedef {Object} ClientUserEditData
    * @property {string} [username] The new username
    * @property {?(BufferResolvable|Base64Resolvable)} [avatar] The new avatar
+   * @property {?(BufferResolvable|Base64Resolvable)} [banner] The new banner
+   * @property {?string} [bio] The new bio
    */
 
   /**
@@ -209,7 +211,7 @@ class ClientUser extends User {
   /**
    * Set Accent color
    * @param {ColorResolvable} color Color to set
-   * @returns {Promise}
+   * @returns {Promise<ClientUser>}
    */
   setAccentColor(color = null) {
     return this.edit({ accent_color: color ? Util.resolveColor(color) : null });
@@ -219,7 +221,7 @@ class ClientUser extends User {
    * Set discriminator
    * @param {User.discriminator} discriminator It is #1234
    * @param {string} password The password of the account
-   * @returns {Promise}
+   * @returns {Promise<ClientUser>}
    */
   setDiscriminator(discriminator, password) {
     if (this.nitroType == 'NONE') throw new Error('You must be a Nitro User to change your discriminator.');
@@ -234,8 +236,8 @@ class ClientUser extends User {
 
   /**
    * Set About me
-   * @param {string} bio Bio to set
-   * @returns {Promise}
+   * @param {string | null} bio Bio to set
+   * @returns {Promise<ClientUser>}
    */
   setAboutMe(bio = null) {
     return this.edit({
@@ -247,7 +249,7 @@ class ClientUser extends User {
    * Change the email
    * @param {Email<string>} email Email to change
    * @param {string} password Password of the account
-   * @returns {Promise}
+   * @returns {Promise<ClientUser>}
    */
   setEmail(email, password) {
     if (!password && !this.client.password) {
@@ -263,7 +265,7 @@ class ClientUser extends User {
    * Set new password
    * @param {string} oldPassword Old password
    * @param {string} newPassword New password to set
-   * @returns {Promise}
+   * @returns {Promise<ClientUser>}
    */
   setPassword(oldPassword, newPassword) {
     if (!oldPassword && !this.client.password) {
@@ -279,7 +281,7 @@ class ClientUser extends User {
   /**
    * Disable account
    * @param {string} password Password of the account
-   * @returns {Promise}
+   * @returns {Promise<ClientUser>}
    */
   async disableAccount(password) {
     if (!password && !this.client.password) {
@@ -324,7 +326,7 @@ class ClientUser extends User {
   /**
    * Delete account. Warning: Cannot be changed once used!
    * @param {string} password Password of the account
-   * @returns {Promise}
+   * @returns {Promise<ClientUser>}
    */
   async deleteAccount(password) {
     if (!password && !this.client.password) {
diff --git a/src/structures/GuildMember.js b/src/structures/GuildMember.js
index 16da298..57cd041 100644
--- a/src/structures/GuildMember.js
+++ b/src/structures/GuildMember.js
@@ -347,6 +347,51 @@ class GuildMember extends Base {
     return this.edit({ nick }, reason);
   }
 
+  /**
+   * Sets the guild avatar of the logged in client.
+   * @param {?(BufferResolvable|Base64Resolvable)} avatar The new avatar
+   * @returns {Promise<GuildMember>}
+   */
+  setAvatar(avatar) {
+    if (this.user.id !== this.client.user.id) {
+      throw new Error('ONLY_ME');
+    }
+    if (this.client.user.nitroType !== 'NITRO_BOOST') {
+      throw new Error('NITRO_BOOST_REQUIRED', 'avatar');
+    }
+    return this.edit({ avatar });
+  }
+
+  /**
+   * Sets the guild banner of the logged in client.
+   * @param {?(BufferResolvable|Base64Resolvable)} banner The new banner
+   * @returns {Promise<GuildMember>}
+   */
+  setBanner(banner) {
+    if (this.user.id !== this.client.user.id) {
+      throw new Error('ONLY_ME');
+    }
+    if (this.client.user.nitroType !== 'NITRO_BOOST') {
+      throw new Error('NITRO_BOOST_REQUIRED', 'banner');
+    }
+    return this.edit({ banner });
+  }
+
+  /**
+   * Set Guild About me
+   * @param {string | null} bio Bio to set
+   * @returns {Promise<GuildMember>}
+   */
+  setAboutMe(bio = null) {
+    if (this.user.id !== this.client.user.id) {
+      throw new Error('ONLY_ME');
+    }
+    if (this.client.user.nitroType !== 'NITRO_BOOST') {
+      throw new Error('NITRO_BOOST_REQUIRED', 'bio');
+    }
+    return this.edit({ bio });
+  }
+
   /**
    * Creates a DM channel between the client and this member.
    * @param {boolean} [force=false] Whether to skip the cache check and request the API
diff --git a/src/structures/Invite.js b/src/structures/Invite.js
index 4fe61d3..210cae5 100644
--- a/src/structures/Invite.js
+++ b/src/structures/Invite.js
@@ -342,7 +342,6 @@ class Invite extends Base {
             captcha_key: captcha,
           }
         : {},
-      // Goodjob discord :) Bypass Phone Verification (not captcha .-.)
       headers: {
         'X-Context-Properties': Buffer.from(JSON.stringify(dataHeader), 'utf8').toString('base64'),
       },
diff --git a/typings/index.d.ts b/typings/index.d.ts
index add5d49..045d45b 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -900,7 +900,7 @@ export class ClientUser extends User {
   public setHypeSquad(type: HypeSquadType): Promise<void>;
   public setAccentColor(color: ColorResolvable): Promise<this>;
   public setDiscriminator(discriminator: string, password: string): Promise<this>;
-  public setAboutMe(bio: string): Promise<this>;
+  public setAboutMe(bio: string | null): Promise<this>;
   public setEmail(email: string, password: string): Promise<this>;
   public setPassword(oldPassword: string, newPassword: string): Promise<this>;
   public disableAccount(password: string): Promise<this>;
@@ -1451,6 +1451,9 @@ export class GuildMember extends PartialTextBasedChannel(Base) {
   public kick(reason?: string): Promise<GuildMember>;
   public permissionsIn(channel: GuildChannelResolvable): Readonly<Permissions>;
   public setNickname(nickname: string | null, reason?: string): Promise<GuildMember>;
+  public setAvatar(avatar: BufferResolvable | Base64Resolvable | null): Promise<GuildMember>;
+  public setBanner(banner: BufferResolvable | Base64Resolvable | null): Promise<GuildMember>;
+  public setAboutMe(bio: string | null): Promise<GuildMember>;
   public toJSON(): unknown;
   public toString(): MemberMention;
   public valueOf(): string;
@@ -4938,6 +4941,8 @@ export interface ClientPresenceStatusData {
 export interface ClientUserEditData {
   username?: string;
   avatar?: BufferResolvable | Base64Resolvable | null;
+  banner?: BufferResolvable | Base64Resolvable | null;
+  bio?: string | null;
 }
 
 export interface CloseEvent {
@@ -5582,6 +5587,9 @@ export interface GuildMemberEditData {
   deaf?: boolean;
   channel?: GuildVoiceChannelResolvable | null;
   communicationDisabledUntil?: DateResolvable | null;
+  avatar?: BufferResolvable | Base64Resolvable | null;
+  banner?: BufferResolvable | Base64Resolvable | null;
+  bio?: string | null;
 }
 
 export type GuildMemberResolvable = GuildMember | UserResolvable;