Asta and the other Magic Knights chosen to train in the Heart Kingdom are joined by Magna and they finally start their training under Loropechika and the Spirit Guardians of Lightning, Earth, Plants, Fire, and Wind and Undine. Since Asta has no magic to begin with, he ends up sparring with Gaja, the Spirit Guardian of Lighting.  They Magic Knights all work harder to surpass their limits.
What's that supposed to mean? He'd obviously 
get stronger if he trained over here.
.ما معنى ذلك؟ من الواضح أنّه سيصبح أقوى إن تدرب هنا
¿Qué? Entrenar aquí sería más eficiente.
¿Qué? Entrenar aquí sería más eficiente.
Comment ça ? Il serait devenu
bien plus puissant en s’entraînant ici.
Che vuole dire? Se fosse venuto qui,
sarebbe sicuramente diventato più forte.
O que isso significa? Ele obviamente
ficaria mais forte se treinasse aqui.
В смысле? Он бы здесь точно
намного сильнее стал.