Best of the worst
'Clash in the Clouds' is basically a training arena to test out different battle strategies with all the different guns and vigors with the blue ribbon challenges. I actually found out about combinations and maximized vigors here that I didn't unlock in the actual game: The crows that grow out of dead bodies cumulating damage on other enemies extensively, as well as the 1-2 combo (bucking bronco then charge to make the ennemy fly out of range).
Concentrating different combat situations really makes you practice taking out enemies in different, more effective ways than in the linear, rather random gameplay experience of the story. Problem is, like in the main game, the AI is weird (sometimes the handyman would actually stop from attacking when it got too much damage - and most enemies tend to have excellent aiming even when you are far away from them) so ultimately the combat tends to be annoying. Because of the 2 weapon limit (they should have removed it here as they did in 'Burial at sea') and the lack of multiple environmental damage types in the same arena, the action gets repetitive quickly. The unlockables in the Museum are cool though, with a few 'making-of' materials, and an actual tear to the Lutece lab. The leaderboards are nice to compare your score with your friends but hardly anyone is playing this, after all it doesn't even feature multiplayer! This was the perfect opportunity for some real COOP between two player controlled characters, Booker and Elizabeth, finally attacking together (after all you get to play her on episode 2). Having this flawed practice option in the game would have been okay but paying extra for it is just ludicrous The locations are also just a remix of places from the actual game so very little imagination here, the enemies are also always the same and they actually brought the Siren boss from the main game in several of the waves. MP and more polished levels would have made this truly worthwhile. You do get a better sense of what combat you could have had in the game but never fully appreciate all that could have been if the design had stretched to unlock the full potential of your armament in different sitations.