(a/n - sorry I am not updating quickly, my life is a mess of school, exams and homework, with little time for writing fanfiction)
Reckless...
Albus duelled with Grindelwald, duelled even though all he wanted to do was sleep, he duelled for Minerva. Despite the fact that he had been duelling for an hour with the wizard, nothing seemed to be working. They were too evenly matched, too similar. Albus pushed those thoughts from his mind. He didn't need to be reminded of his past with the dark wizard. The past where he thought that the dark wizard was everything to him, before he knew how evil he would become.
Albus continued duelling, and he started to be reckless and ruthless. He randomly threw in a few curses that Grindelwald wouldn't expect in a duel between two grown men. A tickling jinx here, a jelly legs curse there. These childish schoolboy curses were helping Albus to strike Grindelwald by surprise. As Grindelwald was too proud to use childish curses in front of his followers, they were proving to be working.
Albus smiled. Who knew how useful those curses could be?