Quick Answer. As of Spade Kingdom arc, Asta is stronger than Yuno. The Black-Asta form that links him to Liebe (devil) has established him as a formidable and a unique opponent not to mention his ongoing training with Nacht to become the 'Ultimate Magic Knight.
Yuno does win, but it was really just a way for Langris to take a break and discover himself for a while. Black Clover's anime staff has been really digging into the space in between the six month time skip originally seen in Yuki Tabata's original manga.
Yuno won't turn evil, but he might become an anti-hero. He is a rare genius whose magic abilities grow at a tremendous rate. His emotions can trigger his side to become stronger than anyone else. The incident might shape his psyche into believing that Yuno is the only one who can put an end to everything.
Charmy is a 19-year-old dwarf-human who loves food and feels like a character from a shojo anime. She has the ability to change her appearance, transforming from a little girl to a mature young woman. Most of the time, Charmy is quite small, around 4'7 in height.
Yuno is a hidden gem; not only does he acquire a four-leaf clover grimoire, but Sylph, the wind spirit, is also his partner. Yuno has the potential to become the Wizard King. His innate talent and determination to grow stronger make him a deserving candidate.
With the series so close to the source material, the show was forced to come to a stop or risk having to create too much filler that might legitimately make fans lose interest.
Mars was born into a family hailed from the Diamond Kingdom. After becoming an orphan, Mars is chosen to be a participant in the Kingdom's experiment to enhance their mages' magic power. Mars "betrayed" by Fana.
It is presumed that the person in the flashback getting stabbed, is Asta's parent. Later, when Dante has a flashback, we see him with a woman on his bed. It is believed that this woman might be Asta's mother, thus making Dante his father. However, none of this has been confirmed in the Black Clover series yet.
As a member of the Golden Dawn squad, Klaus also wears the squad's signature robe. Additionally, the squad's insignia is also positioned at the left-hand side of the robe. While possessed by an elf spirit, two tattoos appear on Klaus's temples and his ears become pointed.
Dorothy Unsworth is always asleep because of her Dream Magic. Since her magic relies on dreams and a dream world, sleeping is a requirement that comes along with it.
Yuno's stand-offish behavior keeps women from gravitating towards him. But he does have the love of Charmy, of the Black Bulls guild. She sees him as a gorgeous prince, thanks to him saving one of her meals from getting destroyed in the middle of the fight.
Finral is 21 when introduced in the series and 22 by the time of the Spade Kingdom Invasion.
Caught off guard by the betrayal, Fuegoleon is quickly defeated, losing his right arm and magic stone. He is then sent back to the Royal Capital. As his grimoire begins to disintegrate, Noelle desperately tries to stop Fuegoleon's bleeding and prevent him from dying.
