Both series have protagonists as brothers, with near-dichotomous personalities, including talent levels. Both involve a single father raising both of them. If you like the fantasy & drama vibe of Ao no Exorcist, you might take a liking to Black Clover.
Valid for both stories:
One is much better than the other
The other has a kind of demon power and in the end it is much more powerful than the "better brother"
Demon guy - happier, never give up, loud
Both brothers have the same dream: to become the paladino/emperor of magicians
2 bro's whom have opposite characteristics where one has brains while the others has brawn. Also while one is refine in attitude the other one is wild and talks too much.........
- two brothers (or at least childhood friends) got raised by a priest
- worlds filled with magic
- one brother is calm and one of the best mages out there
- other brother is energetic and wants to be the best
- the other brother got also the power of the devil
- both are typical shounen anime
Ao No Exorcist shares many similarities with Black Clover, with Rin and Asta practically cut from the same cloth. Both protagonists are energetic, shunned by society, and possess hidden power that makes them dangerous to the established order in their respective universes. The action scenes are the primary focus of both anime, with the core relationship centering around two brothers.
Black clover feels a lot like Ao no Exorcist:
-similarly made overall
-both involve incredibly strong brothers with same personalities and strive raised by a priest.
Both have protagonists with sudden powers that are hard to handle,
they are both also characters who no one had faith in their abilities but they prove themselves. Family and friends play a huge part.
- Both have a main protagonist aiming for a difficult goal
- Main protagonists have funny personalities
- Contains some rivalry between childhood friend (in this case, brother for Ao no Exorcist)
- Demonic Powers
-Main Protagonist has hidden powers
- Sword fighting
The protoganist is a gung-ho, ambitious and raw character. He develops and discovers his hidden secret. He gains the trust of his peers to save lives and his city. If you like shows that involve demons then this is the show for you.
Lovable idiots who do not understand their own powers
constantly proving themselves worthy to others who doubt them
really good animations, and interesting fight scenes
-Both MC's have a stronger rival that they've known for their whole life (Yuno and Yukio)
-Both MC's live in a church
-Both have a lot of action and fights
-Both MC's are short
-Both MC's have a pet of some sort (Nero and Kuro)
-Both MC's use some sort of demonic power (5 Leaf Grimoire and Blue Flames)
-Both MC's are hated by society
Both starts of weak and good for nothing and suddenly gets a demonic power and tries to awaken it