Swordland, from Sword Art Online, music by Kajiura Yuki, piano arranged by Animenz, played by Richard Yang on Yamaha N1X with Garritan CFX VST.
I think Swordland plays even more epic than the Finale from Sparkle, with powerful chords and fast arpeggios. As difficult as it sounds, the piece is not actually too difficult; but this is indeed a crazy workout for the left hand. The middle section, that sustained LH run is so tiring. You need lots of stamina to get through this piece in whole.
As with all of my performances, I have my own interpretation, so the tempo, dynamics, etc may feel quite different from the original recording. Simply put, I play the way I like it.