I wonder witch syndicate is making the money off the revenue
The noises of cheers and jeers were coming from every corner of the Colosseum. The food vendors would add to that noise by shouting about what they were serving and delivering them to their customers' seats with even greater zeal.
Heavy security was all over the place, which was monitored by the 'Under Blades' troops as security detail at various entry points of the Colosseum. One could imagine that additional security would include even more powerful weapons that wouldn't be visible to the spectators.
Victor personally went after the Witches who did this, and he captured those Witches, and… Well, he's done enough to know that the Witches would retaliate in the future.