Character
.saveSaves your character right now (it also saves by itself)..unstuckStuck in a wall or under the floor? Casts the Stuck spell and takes you back to your hearthstone location..dismountGets you off your mount..gear statsShows a summary of your gear and stats..pvpstatsShows battleground statistics.
Stuck while offline? Log in on the home page > Unstuck Characters.
Account
.accountShows your account level..account password old new newChanges your password (you can also do it on the home page > Login > Change Password)..account lock ip onYour account can only log in from your current IP (off to remove it).
Information
.helpLists the commands, or explains one: .help unstuck..commandsLists every command your account can use..server infoServer version, uptime and players online..gm ingameLists the Game Masters that are online right now..lookup item nameFinds an item by name (also .lookup quest, spell, area, creature, faction, skill).
Arena spectator
.spect spectate PlayerNameWatch the arena match of that player..spect watch PlayerNameFollow another player's point of view while spectating..spect leaveStop spectating.
Slash commands of the game
The usual game commands also work: /w Name whisper · /g guild · /p party · /1 General · /invite Name · /roll · /pvp · /afk · /who · /played.
Northrend is waiting
Free, no download, the original game. Create your account and be in Azeroth in a couple of minutes.