The women of Fairy Tail are not only beautiful but they are smart. First we see Lucy, now Mira use her brain to find a clevor way to victory. Starc constract to Natsu who just charges without a plan.
The flashback that was unexpected, but still don't see their parents. Did there parents abanden them because of Mira's powers, if that is the case why abanden Elfman and Lisanna also, die protecting them from people that wanted to kill Mira because of her powers, we may never know. We see Mira first meeting with Erza, though we don't see what began their rivalory, my guess is something to do with cake. Mira was about to leave her siblings, but they stopped her, a touching moment.
In present time, Mira is in trouble, she has to turn around or else she and Lisanna, and heck even Lammy are dead if Sayla is not stopped. She absorbs a bit of Sayla's power, which was more desperation than smarts, but than she uses macro not on Sayla but on Elfman, and now it is 3 against 2, Fairy Tail has the number advantage. But poor Elfman he is going to a human yo yo or a human rope in a tug of room isn't he, as I can see Mira and Sayla take turns controling him.
Mira is assured victory now unless someone else shows up. Though if she beats Sayla, what is her end game for Sayla, well she actully kill her, that goes against Mira's character, but after everything Sayla has done you couldn't blame her if she did, but still that is not the Mira I know, technically she did kill Ezel and Farnmouth, but that is just circumstances, that is not the same as having someone helpness unable to fight and to deal them a fatal blow. Perhaps that is what Marde Guille's role to kill off the losers. If Sayla does die, I hope we get backstory before that. Sayla is an interesting enough character I want to know more about her.