One the Extra's lets a set of tongs slip. They're not being used currently, so it isn't a catastrophe or even a true error in the sense that it will hurt the process in any way other than it might disturb the rhythm of the pounding of metal. The tongs to not hit the ground, surrounded by a flickering green fire as Madelyne catches them.

Hopefully, this would be a lesser disturbance than the discordant clash of metal coming into contact with the ground.