So, not an anime, but since this is the section where the Abridged series recs topic is in...
Scootertrix: The Abridged
One of the very few (if not the only?) My Little Pony abridged series to actually have a conclusion, and not just a permanent hiatus/cancellation. It runs 25 episodes and a finale, along with several shorts and a post-series epilogue. Scootertrix only hits the same plot beats as the series itself for a couple of episodes, then does a thorough re-imagining of the series such as the second half of the series involving a war with the changelings, albeit still with the same characters. There is an actual evolving story that continues to advance and wrap up plot points through the entire Abridged series. Humour style can definitely be very hit-and-miss with a more 'laconic' style, but I certainly enjoyed it. It's hinted at a few times early on, but starting about episode 15, the fourth wall becomes a very definite thing, and the series does a very interesting take on the fourth wall. Even the series finale is an actual CYOA of choices to go through several different paths (albeit they all end up at the same ending)! They make Discord an absolutely terrifying villain.