I had to reread this manga because I had forgotten its main story. Now I read this and I do see an axe coming or already there.
It could have been a good thing but went downhill.
"You have the magic crest that let's you copy and neutralize any other magic crest. I'm going to kill you and steal it with my powerful ancient magic"
"Noooo! You neutralized my magic crest. That's impossible!"