This is a deck I made from a grammar cheat sheet I found online a couple years ago. It had some mistakes and there's probably a few more but I fixed what I've found and added a lot of translations using Papago. The audio is Google's Text to Speech. I've only just started using the deck but it seems very useful so I wanted to share. I don't know how advanced it gets. I'm guessing up to intermediate somewhere. I like this deck as opposed to other grammar decks because the examples are short and simple. This is a quick and dirty overview of the grammar. You'll need to flesh it out with lots of reading and probably consulting a proper textbook.
Here's a link to the cheat sheet I based it on:
https://www.dropbox.com/s/w4gsucku7t0vldl/Korean%20Grammar%20Cheatsheet.pdf?dl=0