Episode 17

Destroyer (破壊者) is the 17th Page of Yūki Tabata's Black Clover.

Summary
Lotus tries to get away but Asta, Noelle, and Luck give chase. Unfortunately, Lotus does end up getting away but he's confident that Mars, the Diamond mage, can handle it from here. Klaus notices the stones embedded into Mar's forehead. He believes Mar's magic has been amplified artificially. That the Diamond Kingdom has been embedding magical objects into people's bodies so that they can amplify their power. Klaus attacks Mars but he blocks it with a mineral clone. Yuno fights Mars but no matter what he throws at him it doesn't seem to make a dent. Mars says that his magic has no effect on him and that it's no use. This makes Yuno remember when Asta and he were kids. How Asta used to ask Yuno to help him train and how he wouldn't give up until he touched Yuno. Yuno continues to fight even though Mars keeps telling him to give up. Mars brings down his magic sword to crush Yuno but Asta arrives just in time to cut it in half. Asta challenges Yuno to see who can bring Mars down first. Klaus can't believe that Asta was able to save Yuno when their magic wasn't working and can't accept that he was saved by the Black Bull. Mars creates many mineral clones and Asta attacks him. He manages to hit Mars and sends him flying across the room. Luck goes around and starts destroying all the mineral clones. Klaus is still in shock that someone without magic can be so strong. Noelle tells him that Asta's power is negating magic. Klaus thinks that he got lucky getting that power. Mars returns with a big magical diamond beast and squashes Asta. He asks Asta what he is and Asta tells him that he was born without power and that he's going to be the Wizard King. He jumps and shatters the beast sending Mars falling to the ground. Yuno remembers when they were children and how Asta kept trying to get through his magic until he succeeded.