To be fair, we don't know how time/resource consuming cloning may be, sure there where a lot of clones of the last priestess but that's because they make weapons out of their corpses.
Miyu the chad pulled OG saber, she must have been pulling on a Fate/Stay Night celebration banner or her luck is just that good, if that's the case, Miyu has streamer luck.
He seems strong and all but limiting himself to realistic weapons of war kind of doomed him, unless he can make his believers into nuclear bombers I don't think he'll do much, then again he only exist to job and prop up the power of the Goated Demon King.
The bad part of the Tournament arc ending is that we could go back to the Fraud Hero that is the MC, nothing like the GOAT Demon King on his way to end humanity and in the process, the story after having a good fight.
o7 for the Tech Hero, She was the best character in the manhwa. If the Mech Hero doesn't become an ally of humanity after this or, at the very least, neutral, it will be weird af.