If you only visit one page, this is the page! You'll find all the basic commands you would need to get around the server and use the most important functions.
/warp (warpName) - Teleport to a server/gamemode
/rtp - Randomly teleport somewhere in the survival world
/tpa <username> - Send a teleport request to a player
/tpaccept <username> - Accept a teleport request
/sethome <name> - Create a "home" you can teleport back to
/home <homeName> - Teleport to one of your saved homes
/element - Choose your element
/moves - Choose your moves
/b bind <movename - Bind specific move
/b level (-c) - See your bending levels (add -c to see your moves and combos)
/b preset list - List your presets
/b preset create <name> - Create a preset to bind later
/b preset bind <name> - Rebind a preset of moves
You should always claim your builds!
/k create <name> - Make a Kingdom
/k claim - Claim the chunk you're standing in
/k bank deposit $ - Add money to the kingdom, for claiming
/warp landclaim - Exchange items for Resource Points for claiming