In the world of Black Clover, two characters are fan-favorites as they have been at the heart of the story. Asta and Yuno, who started off as childhood rivals, raised in the same orphanage, symbolize duality in its purest form. Asta, the magicless warrior, and Yuno, the magic prodigy, have always raced toward one shared goal: becoming the Wizard King.
That is why fans have been debating who is stronger among the duo. The story of Black Clover has never confirmed definitively whether Asta or Yuno is stronger. Both of them have continuously challenged each other to get out of their comfort zone.

As the series progresses toward its final arcs, the power levels shift drastically. Asta gains full control over Devil Union, trains in Hino Country, and improves his anti-magic techniques. He even learns Zetten, a powerful technique that lets him bypass time-based magic. This might put him on par with or even above Yuno again.
But Yuno, however, continues to grow as well. In the Judgment Day arc, he wields both of his grimoires simultaneously and almost defeats Lucius, the primary antagonist. He’s shown mastery over Star and Wind Magic, using teleportation, time-space control, and area destruction.
Comparing the strengths between Asta and Yuno in Black Clover

1) Physical Strength: This category undeniably goes to Asta. Yuno has rarely had to rely on physical strength, given his magical superiority, and has relied entirely on magic. In contrast, Asta’s training has made him capable of going toe-to-toe with devils using nothing but swords and muscles. His raw endurance alone makes him a nightmare in prolonged battles.
2) Magical Ability: Yuno dominates this field. From quantity of mana to versatility, he stands leagues above Asta in traditional magical terms. His dual grimoire setup — wind and star magic — gives him tools Asta cannot match in sheer magical scope.
3) Speed: Tricky. Asta’s speed in Black Mode and Devil Union is extreme, sometimes too fast for opponents to even react. But Spirit Dive Yuno is also absurdly fast, especially when enhanced by wind propulsion and mana. In their most recent forms, they are closely matched.
4) Durability and Endurance: Asta edges out Yuno. His anti-magic nullifies most attacks, and his stamina allows him to fight even after taking devastating blows. Yuno, while powerful, still has a mage’s body and has taken more visible damage in fights.
5) Technique and Tactical Ability: Both are intelligent fighters. Yuno’s use of Spirit Creation Magic and combined magic types shows a strategist’s mind. Asta’s ability to read ki and create openings makes him unpredictable and deadly, even against faster enemies.
Who Is Stronger?

During the Royal Knights arc, it seems like Yuno was stronger. The canon light novel confirms this, with multiple statements and feats to back it up. Asta was still evolving his Anti-Magic forms, while Yuno had already completed Spirit Dive and had Spirit support.
Then, during the Spade Kingdom arc, both of them are almost matched at the same level of power. Asta’s Devil Union turns the tide against Lucifero, while Yuno’s dual grimoire grants him Star Magic and spatial warping. They both perform Captain-level feats. At this point, they’re essentially equal, pushing each other higher.
Finally, as of recent chapter updates of Black Clover, the two rivals are nearing the pinnacle. Asta’s anti-magic can nullify even time manipulation, but Yuno’s Star Magic bends the battlefield itself. A one-on-one fight now could go either way, and it’s clear that Black Clover is saving this long-awaited duel for its climax.
Final thoughts
In Black Clover, the beauty of Asta and Yuno’s rivalry is not about who’s definitely stronger at any given time; it’s that they push each other beyond what anyone thought possible.
Yuno may have been stronger during the Royal Knights Tournament, and Asta may hold the upper hand against devils. But no matter where they stand, one thing is true: neither of them stops growing.
Their rivalry is the beating heart of Black Clover. And as fans, we don’t just want to see one beat the other; we want to see them both become the strongest, together. It’s not a battle, it’s a cycle of infinite growth.