We want to emote!

During a TCG battle with a complete stranger, there is very often the need to communicate something to your opponent. More than anything else, just a way to say “sorry” when you’ve completely missed that it’s your turn and have forced them to watch you running down the clock for no good reason.
It’d be lovely to be able to throw up a “GG” when you see their deck falling into place (whether genuine or sarcastic, and they’ll never know), or a cheeky “Sorry!” when you see them flip four tails in a row. Or a guilty face when your own pack deals you exactly the right cards on your first turn.
Clearly nothing that can be abused, and obviously nothing that lets you send messages, but just a bunch of emojis would make a big difference. Think of Marvel Snap’s wonderfully expressive options, that end up becoming a bizarre language in and of themselves.