HOLY SHIT bro just got creative mode for 8 seconds, and just /kill 'ed all the weaker demons in a mere 2 seconds.
I wonder if we'll see this type of magic from Matthias though it feels like he's more close-range oriented in his fights so far.
MC's reasoning for wanting the 4th crest is so blurry at this point that the only thing I remember the new skill he acknowledged is the perfect magic analysis where he can analyze magic surrounding him but drained him back in the Rank A promotion arc.