Luxor

Hi everyone! I am new, just got out of the story mode. I am trying to create a new ritual to use when defending and one to use when attacking, and i was wondering: - where can i do that, if i dont want to fight someone to get to the menu? So far the only way i have been able to acces the rituals menu is by fighting someone... is there any other way? - Why do a lot of people use a single creature to defend? I might add some other questions later... Thanks in advance for any answers! Luxor