Kara no Kyoukai 5: Mujun Rasen, Fate/stay night: Unlimited Blade Works 2nd Season Recommendations
This is another series written by Kinoko Nasu, author of Fate Stay Night, which takes place in a world parallel to the story of Fate Stay Night.
The universe is therefore very dark, tragic and very violent. However, more mature in Kara no Kyoukai.
There are similar battles with extensive use of magic.
ED are composed by the same composer. (Yuki Kajiura)
Be careful to start with the first film Kara no Kyoukai
Both series are in a similar universe (including the presence of the Association of the Magi, the presence of a school for the Magi in England)
Both sets are interested in a way to attain the spiral of Origin, a recurring theme in the stories written by Kinoko Nasu.
The difference is that Araya Souren (in Kara no Kyoukai) as a magus is interested in the origin while Gilgamesh (in Fate) uses the Holy Grail (another way to reach this spiral of Origin) as a means to bring "all the evil in the world" to use its destructive power.
I can more detail, it is necessary to view
Both animes have a similar atmosphere because it is two stories set in the same universe.
Both animes are adapted from works written by Kinoko Nasu.
Both animes were made by ufotable.
The chara design are very similar.
Both series include epic battles involving among other magicians and beings with supernatural abilities.