we can see the MC's plot armor here: he's all, well I don't need to do anything since I'm saving my mana. Without plot armor this scenario could easily end without him doing anything at all, and then he fails.
'in a split second, a star path appeared'
Wasn't there supposed to be a cool down for these? Like the MC has a 3 sec chanting time or smthing and this guy can do it in less than a second.
Smh