User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 41: May 2015/@comment-1153699-20150602132933/@comment-1153699-20150602210910

What makes you think she can negate all of their attacks every single time without fail? Given what we've seen so far from her, she ain't doing that.

Trapping one of them in another dimension wouldn't count as her taking on both of them at the same time which Laxus did without much trouble. My question was, can she take on both Natsu and Gajeel in a fight. The answer is obviously no given her feats. She would have her hands full with just one of them.

But I'm taking about intelligence during a fight. Like what Erza has shown against Midnight. She didn't really use her brain against Erza during Tartaros arc. During GMG, Minerva had time to prepare and plan her strategy. But what would she do in a fight where she doesn't have time to prepare and also having no intel on her enemies?

The difference between the Tempesta Laxus fought and the Tempesta Natsu fought is Tempesta's appearance. There was no indication whatsoever that Tempesta had received a power up or something like that from having his body restored at Hell's Core.

Tempesta resorted to a suicide attack because that was his only option. If he would have chosen to continue fighting Laxus, he would have only got his ass kicked even more.

The last sentence is entirely your opinion. There was no indication for that whatsoever in manga.