Battlefields were noisy, especially ones that involved mystical powers. Those made it even more noisy, unbearably so.
The steps of giant colossi, the earth trembling punches they threw, the roars of fire, the thunder from the lightning leaping from someone hands. There were all sorts of roars, rumbles and booms constantly filling the battlefield, especially when Astra had been so liberal with shooting off her bolts.
It would be more than enough for anyone to get used to the sound of rolling thunder and simply tone it out. So they could hardly be blamed for not noticing that some of those sounds of thunder didn't line up with any actions.
Not one of Alexandra's punches, the crack of the demons whip or Astra's bolts. The sound of the growing thunderstorm had gone completely unnoticed by all but one person, the one person who could take the most advantage of it.
