Twilight looked away, somehow managing to feel a little embarrassed despite the circumstances. War magic was not something in the prescribed reading lists in schools, or any other institution the kingdom over. "Maybe the theory…" She remembered the bolts of red light she had used during the royal wedding. They had been dialed down at the time, but the idea behind anything larger, more complex or dangerous was essentially the same. She had read the books, the dusty tomes dedicated to a branch of magic everypony else seemed to have forgotten, from a time Twilight couldn't locate in the history books.