Due to Captain Dorothy’s magic, Vanessa, who can use magic to alter fate and Charmy, who can use magic to recover mana had disappeared.   Asta and the remaining Black Bulls have lost the bulk of their defense and are now struggling against Gauche and Marie’s combo magic being used against them. Meanwhile, Vanessa and her team try to figure out how to get out of Captain Dorothy’s dream world.
First, what she's generating are 
actual objects she visualized.
.أوّلًا، إنّها تجسد أشياء حقيقة تصورَتها
Erstens: Was sie dort erschafft, ist tatsächlich
auch das, was sie sich vorgestellt hat.
Uno.
Uno.
Primo, ce qu’elle fait apparaître
provient de son imagination.
Prima cosa. Ciò che lei lancia è esattamente quello 
che ha immaginato nella sua mente.
Primeiro, que o que ela está criando
são mesmo os objetos que parecem ser.
Во-первых: она создаёт именно то,
что представляет в голове!