Scabbards(Part 1)

Wing VIUnicorn Crest IIINightmare Sheath IIIRozen WingThe Wings are very similar to the Rapiers, considering they are part of the same sets. I would consider the Nightmare Sheath to be the weakest of the four simply because Wing VI outclasses it in every regard except Blade Storage, where they all share 5. The Nightmare Sheath does look very nice though, so if you're willing to trade off some Gas Capacity and a little Gas Pressure, go for the Nightmare Wing. But as with the Nightmare Blade, be prepared to refuel a lot or spam Decisive Battle Signals.Unicorn Crest III is the middle of the line, 800 Gas Capacity and Pressure makes it very good Scabbard. I would still replace it with the Rozen Wing or Wing VI ASAP.The Rozen Wing is the most balanced of all four of the Wings, having 900 Gas Capacity and Pressure, it makes you fly fast and you can go for a while without refueling. It's great for a already fast character like Levi.Wing VI is probably the best for mobility, it's low Gas Capacity may turn you off at first but then when you see it's Gas Pressure only 100 away from being tied with the Perfected Scabbard, you'd probably have a tough choice on your hands. 5 Blades is more than enough to kill any titan and the Gas Pressure makes it fly by fast. It's up to preference which Wing you'd pick though. They're very similar to the Katanas in a way. Each of them excelling in one stat or being balanced across the board.