She clearly knows that Shadowslash cherishes his family, Don Don was truly in a near death state after the battle, if it weren't for the fact that Russel have done his best to keep him alive for Yshelia and Shadowslash to arrive, he would've died.
Shadowslash then flew on top of the sword sect, his presence was extremely overbearing, everyone in this world sensed him, his aura doesn't seems to belong on Saint Realm and seemingly take on an another realm, making him intimidating to everyone, including the world consciousness.
The demons that were invading have quieted down, they realised that they have another enemy, unlike them, the new enemy is extremely powerful, they actually dares to challenge the entire world in an upfront manner.