Vohnvolt had been doing three things ever since he hid himself, temporarily leaving the heated battle whose setting he had created.
For one, he had been observing.
Indeed, there were several dangerous foes here and it was pretty much a life-or-death battle, but since he had assumed the form he had now, the amalgam thought simply struggling bitterly to win against all the enemies would be waste. There was so much more he could accomplish before the timer for [Bringer of All] reached its limit.
Of course winning wasn't as easy of a task to begin with, as evidenced by how the Herald powered up and unleashed his hidden cards, how leisurely reactive the Null Devil King was being, and how easily the masked man was able to establish himself as a great threat to everything around because of the peculiar way he fought.