Everything here requires Manage Expressions, except viewing.
Emojis
Adding
emoji create aliases: add, upload, steal. emoji create many aliases: bulk, batch.
steal (aliases boonk, jeboink) is the fast one — reply to a message and every custom emoji reacted to it gets added to your server. emoji create reactions <message> does the same thing with an explicit message.
Managing
emoji delete duplicates compares the actual images, so re-uploads under different names get caught.
Archiving
Exports every emoji as a zip. Restoring uploads them back, reporting progress and skipping anything that would exceed your server’s emoji slots. This is the practical way to move an emoji set between servers.
Aliases: export, dump, zip / import, load.
Finding new ones
emoji remix (aliases combine, merge) blends two emojis into one new image.
Enlarging
The bare emoji command — aliases emote, jumbo, e — shows an emoji at full size. Works on emojis from servers you’re not even in.
Stickers
The same shape, with sticker. Aliases: stick, st, stk.
sticker delete all requires Administrator.
Archiving
Vanity tagging
Appends your server’s vanity or invite to every sticker name. Since sticker names travel with the sticker when someone uses it elsewhere, this is free advertising. Aliases: vanity, link, url.
Command reference
Emoji and sticker slots are tied to your boost level. !emoji archive before a big cleanup means you can always put things back.