This is the sort of episode that Araki Tetsurou was born to direct.
Eren and Nice Ass finally doing battle. It's been delayed and deferred and the merits of what Eren should do loudly debated, but the deaths of Petra, Auruo and Erd pretty much invalidated every decision they - and Erwin - had pushed on Eren up to that point. At the time I might have agreed with the notion that Eren's survival meant everything, and it's still a compelling argument. But equally true is that he's really the only weapon that has a chance to inflict real damage on the enemy, and if you're going to take it upon yourself to effectively use him as bait then you should probably be prepared to unleash him in the battle.
Eren clearly doesn't like the look of it), and took Eren's head clean off. She's full of surprises, this one.
biting him out of his titan's neck and swallowing him whole certainly qualifies as threatening, we saw berserker Mikasa in all her glory here. She's soon joined by Levi, and with Eren having at least managed to tire the female titan out (I also wonder if there's a finite amount of power at her disposal that all that turning-to-stone and regenerating eyes slowly depletes), it appears as if her reign of terror may be coming close to an end.