?ping - to check my latency,
?avatar - to view mentioned membered avatar.
?user-banner - to get mentioned membered user banner.
?membercount - member count of this server.
?userinfo - to get member information.
?announce - send embed type announcement,
?addrole- give role to memntioned member.
?removerole- revoke role from mentioned member.
?lock- everyone can not send messages is used this command.
?unlock- everyone can send messages is used this command.
?hide- everyone can not see channel is used this command.
?unhide- everyone can not see channel is used this command.
?nick- to change nickname mentioned user.
?ban- to ban a member.
?unban- to unban a member who have already banned.
?softban- to ban member and immediately remove their bans.
Fun & Games
?hack- mention to hack a member.
?cat- to generate a random cat images/gif.
?calc- to calculate any operation.
exp: ?calc 451 + 544