The deck is structured so that it starts with simple, short sentences featuring high-frequency words. As you progress, the cards gradually increase in complexity, and more context is added when it’s useful or necessary.
My personal recommendation is to start using the deck once you know around 2,000–3,000 Japanese words—that’s when I began immersing with anime and started building this deck. If you know fewer than 2,000 words, you can still use it as a vocab deck. Just focus on learning the target word, and don’t worry too much about understanding the full sentence. Looking up unfamiliar words/grammar in the sentence is highly recommended though.
More advanced learners can challenge themselves by turning off the English definitions and using the deck for full immersion or shadowing practice. The second half of the deck, in particular, offers longer, richer sentences from context that work well for this purpose.
Sample for Front and Back Card: https://imgur.com/a/6WuifRS
Edit: Fixed missing audio file