Fairy Tail 443 shows Brandish’s power to change the ground she walks on that she submerges the whole island in order to prove a point. Brandish also mentions that Makarov is still alive and that there are 12 Spriggan who are of her power level, or more. They have no chance of defeating them, thus should give up. Gajeel and others are at Blue Pegasus where they’re there to get Laxus and others back.