He needs a badass display, an extraordinary display here... This beast has been kept in this cage for far too long. The scenery is perfect, Garp who was in the red port along with the candidates for admirals left, Green Bull who was with Fujitora also left, Fujitora was seen in 954 probably hunting the Shichibukais, Kizaru who was in the new marineford which is not far from MG also left, Lucci and the others who acted protecting the celestial dragons also left, what we have left is only Akainu in the new Marineford is the perfect scenario here for Dragon to break through the front gate. LOL
And Akainu can be Dragon's tool here I won't say he will be defeated but he will be humiliated.