this is the name of the first Gundam seen( non-SD universe) with a physical sword, arguably one of the most badass mobile suits ever created, it carried 7 swords 4 of which were geam sabers and 3 of which were physical, the arm mounted GN sword-rifle, like the name suggests could alternate between being a sword and a rifle, it was specifically designed to combat other Gundam type mobile suits that were capabe of creating a GN field, or energy shield using the GN solar furnaces
> "Gundam Exia, exterminating the targets" Setsuna F. Seiei, pilot of the Gundam Exia