SWIFt is a skin that can be purchased from the Store for 1500 Gems.
The skin itself shares a lot of similarities to Crazyblox's skin. However, this is one of the few FE2 skins that isn't based off a Roblox player, the other is Speedrunner.
When used, this skin plays clips of music from Beneath the Ruins, Dark Sci-Forest, and Dark Sci-Facility and is similar to the Navola skin. It also plays music from the Secret Area.