In case you didn't know, this Expecto Patronum allows you to summon a Patronum, the mystical spirit of some beast. In essence, this spirit is the embodiment of good and positive memories that can expel the darkness caused by the Dementors.
Unfortunately, you cannot learn this spell. It is not necessary, because there are no Dementors in the game!
The information was also confirmed by another reliable source.
The samurai action game couldn't beat out only Helldivers 2 and God of War.
So far, both games are in the early stages of development.