The best thing about this chapter is obviously Acnologia speaking for the first time and him declaring that he will execute Igneel. The rest of the chapter, was average to say the least. I never liked Natsu as a character, and I certainly don't like Sting and Rogue after failing so many times in the Grand Magical Games arc.
Mard Geer's face in the last panel looks convincing that he's going to get serious, but I don't have high expectations for this man. Mard hasn't done much in this arc other than use Algeria. Mard has tried so hard to act like Edo Madara by basically standing in 1 spot and watch the big guys fight. I have no doubt that Natsu will defeat Mard Geer because as the beginning of the chapter says, the setting was 20 minutes before the activation of Face. I honestly believe that 20 minutes is more than enough time to defeat Mard Geer considering that Natsu blitzed him a few chapters ago.
Overall, a solid chapter. 4/5