Mid season two when they transformed on the wall after their low-key identity reveal. There were whole scenes of it blowing everyone and thing away (when he reached out to grab Ymir's, stretcher). This episode they just suggested that he has the greatest titan power of them all.
Facing off against Mikasa, not being wavered by Armin's head tactics, It's almost like Bertholt has developed his own shounen growth spurt; too bad its being pointed against our heroes(?).
It was disheartening to have valuable episode minutes occupied by the Marco flashback (bad way to go), but I'm certain the show will benefit from it in the long run and repeat viewings: characterization has always been one of my favorite things about AoT. Waiting weekly for my dose has never been so hard.