Because the @everyone notifications wern't enough
Arcane can notify your server's members of when you upload a video to your Youtube channel.
Send alerts to your Discord server when your favorite streamer goes live on Twitch, YouTube, or Discord Voice Chat!
Wick will notify you of anything dangerous happeneing in your server, but it will also log anything it does instantly and lets everyone concerned know.
The bot has multiple features which allow for notifications alerting users when new skins are released as well as game updates and wipe reminders
Mirai has the ability to post notifications of Twitch streams and episode notifications for airing anime. She can also send you custom reminders.
Bringing content from all over the web to you in real time. Twitch go live notifications, Subscribe to twitter users, subreddits, 4chan boards and more.
Send alerts to your Discord server when you or your favorite Twitch streamer goes live, when a new video is posted on YouTube or when a new post is written in a subreddit.
Basic reminders at specific times, and viewing of those reminders.
Ping roles that aren't mentionable! Twitch streams. Repeating embeds (that optionally ping an unmentionable role). Welcome messages (with embeds).