I ask because I was playing a City of Shadows deck that was bringing out Venomous Blade in the Shadows Phase before Challenges Phase started. Then, they would trigger Meera Reed and get blanking going too. I decided that the Blade was doing more damage since it was permanently (killing) dealing with my characters.
Is it legal to kneel the Painted Table in Shadows phase if I am first player, so that when second player brings a card out of shadows and triggers a response for bringing something out of shadows, it gets cancelled? I want to stop the blade from getting its kill.