1. It is good bot with cool and interesting design. To get all list of bot command - use /help. Next use arrows.
2. Moderation Commands.
/pin, /unpin, /slowmode, /chat on, chat off and others.
3. Informationally commands and utility.
/avatar, /serverinfo, /channelinfo, /roleinfo, /statvoice and others
4. Bot work 24/7.
5. To get bot prefix - mention bot in text channel.