You and your small army of foxes spears throughout the prison. You would target the prisoners and eat their souls and transform them while your foxes would rampage and destroy any resistance from the guards, who due to their non evil souls would simply die and not turn into a fox.
However things were too easy right now, the real challenge was coming closer and closer you realize. Still invisible you see the real threat. The elite highly trained prison guards, each one of them trained for desperate situations like this. Each one wore bulletproof armor and wielded a riot shield along with a double barrel shotgun. These were the real deal you think.
You snarl at them, knowing that your powers wouldn't let you fatally harm them in anyway.
However, your foxes seemed to be an exception to this rule. You briefly ponder why, as you see the riot guards quickly march in unison to your army of demon foxes.
They all seem to retain their composure, even as you see your foxes begin to charge towards them. One of the squad commanders yells out an order, and you see the riot guards equip their shotguns, and as the commander yells "Fire!" you wince in pain as you hear the loud banging noise of several shotguns firing at once, the first three rows of your foxes utterly decimated into a bloody mess. The remaining foxes are undeterred at they snarl at the guards. You notice even more elite guards coming your way.
This was bad, your foxes while powerful, couldn't deal with trained forces like these. You growl to yourself as you hurry to think of what to do.
Then an idea hits you.