Yuwaku rushed in and grabbed Ignis, pulling her back before she could keep blasting fire at Tiamat's face. It was clear that Tiamat wasn't even trying to defend herself; she sat there like a dead fish and took the flames. As expected, she wasn't even scratched.
And while that happened, Asmodeus dealt with the monsters Ignis brought with her. From what the Queen of Hell found, Ignis had burned those monsters and forced them to follow her into battle. A typical thing for dragons to do.
Usually, it would take a dragon a few months to dominate some monsters and command, but it seems that Ignis found a quick way by threatening them with her searing flames.
Since they didn't want to be here either, Asmodeus started grabbing them one after the other and threw them back into the mortal world through the gate that Sofia opened.
