User blog comment:FairyRaven/Fairy Tail vs. Alvarez Empire! Place your bets!/@comment-203.111.234.105-20150917045945/@comment-7418318-20150918074113

You're taking a bad translation too literal here.

Wendy's magic gave her "dominion" over the air or atmosphere. That's an entirely different thing than space in the sense of dimension bending and stuff.

@other Anon: Marin seemed quited upset when he said how Mest had the audacity to use spatial magic in front of him, as if he believed he was the only one with a right to use it. Hence I concluded that he would go after anyone using spacial magic in his vicinity.

If Makarov and Mavis are smart (which they are) they'll keep Wendy in the back-row, buffing people and healing the wounded. So Marin would have to go through the front-line first to reach Wendy. And if even the comparetively "small-fry" can break through the FT lines, then they are absolutely doomed against the Spriggans. That's why I think that Marin will not be the one to fight Wendy... not unless he's held back in reserve until after the Spriggans broke the lines, but I think that's rather unlikely considering that Alvarez doesn't value to lives of their own soldiers - or game pieces as Zeref would call them - enough to try to minimize losses. They seem more apt to first throw away their lower ranks to soften up the enemy and then finish them off with the elite.