It would have been so much simpler, for purposes of keeping track of the game state, if this said "if Acrobatic Cheerleader is tapped and doesn't have a flying counter on it" and then didn't have the "only once" clause. And it would have made the card slightly stronger, which is totally fine because I can't imagine it seeing much Constructed play in any case.

These are the kind of cards that really bug me in the set.

1. They make no sense in terms of lore, the House has taken over the plane for so long people no longer remember what basic things like "city" or "dawn" are so why do they act like high school was last week. Even if you assume they're someone from another plane why are they dressed like everyone else?
2. It's overly goofy in the face of the overwhelming terror and lethality of the House. Why would someone who grew up inside the House not treat it like the threat it is? How is someone who wandered into the House still alive if they're so nonchalant about danger?
3. The design lacks any good fantasy, it's literally just a generic cheerleader outfit. The story had survivors scavenging clothes and making them out of wallpaper, had they kept some of the 80's style but made the clothing look more makeshift It'd have been way better
4. Edit: Oh yeah, the name doesn't make sense in-universe either. Duskmourn residents would have no concept of a cheerleader and wouldn't refer to someone who wandered in that way either. "Acrobatic Survivor" would have worked much better lorewise and putting her in something like a Strixhaven cheer uniform would still hit the trope without having to put a neon sign on it