In Discordmember

Commands for everyone

What it does: /register links your Discord account to your character and hands out the roles the guild configured. /profile shows your attendance, whether you came when you said you would, the next raid and your characters. In the federated guild there are also /apply (application), /pool (who has no core), /availability (the nights you can raid), /core info and /core apply. /appeal asks the Council, once, to review an expulsion.
Who sees it: Anyone on the server. /register and /profile exist on every server with the bot. /apply, /pool, /availability and /core only appear where the guild switched on the federated guild: /apply is for someone not yet in the guild, /availability for recruits and members, /core apply for members. /appeal is only for someone who was expelled.
Where to find it: Typing the command in any channel where you can write. In a locked channel, use the pinned message's buttons: Register, Apply and My data in the entry channel; See the pool and My availability in the pool channel. /appeal works in the bot's DM.

/register suggests roster names as you type. If the name is in the roster and nobody has taken it, you are confirmed right away. If it already belongs to another account, the bot refuses. If it is not in the roster, the bot asks for class and spec, registers anyway and links it by itself when the roster arrives.
In Forever the name has a surname. If you type only the first name and it matches someone in the roster, the bot shows the full names instead of registering.
The first character you register becomes the main. From the second on, the bot asks which is the main: the roles come from it.
The class and role roles are swapped for the main's. The member role only comes when the character is in the roster, and /register never removes it.
/profile replies only to you: nobody else sees your numbers.
/apply only works if the guild configured an applications channel, and each person has one pending application at a time. Once approved, you get the code of conduct by DM, and the recruit role only comes when you accept it.
The replies to these commands are only for you and come in your Discord's language.

The bot does not touch a role the guild did not configure for /register: color, channel, or what you got for another reason stay where they are.
Where the federated guild is on and uses the same role, it is the one that hands out that role, and /register leaves it alone.
/apply, /pool, /availability and /core do not show in your command list: the guild did not switch on the federated guild.