"A healer might try the same, by casting Heal on an undead. However, their spell would fail and they would suffer a backlash, harming them. That is why no one even bothers to try it anymore."
"You don't face backlashes because of the Supreme System's targeting mechanic and your Magus subclass. If you ever learn to cast on your own, you would lose these advantages."
"Since you cannot face backlash, the spell had to succeed. There is no failure rate in your casting, only that you are burdened by various limitations like no double-casting, channeling, or delayed casting. These are various casting techniques you can only use with manual casting for now."
Mikey took back his hand and gazed at Darius with his cyan Soul Fire burning strongly. "Boss, do you understand now?"