While Asta and the others were training in the Heart Kingdom, back in the Clover Kingdom, Yami asked Mereoleona to help him train. They start their training immediately and Yami is no match against Mereoleona who is a master at using Mana Zone. Meanwhile, the Spade Kingdom's forces continues to draw nearer as it continues its invasion...
I was able to use the Mana Zone 
or whatever it's called.
.تمكّنت من استعمال منطقة المانا أو أيًّا كان اسمها
habe ich auch die Mana Zone verwendet.
j’ai utilisé ce truc, le mana zone.
sono riuscito a usare quella roba lì, il Mana Zone.
eu consegui usar a Zona de Mana, sei lá.