@Myumyuh
Well, the common sense of his last two worlds ( remember he is not a typical Japanese reincarnation, he was born in a fantasy world ) might have been a lot different from where he is now.
Its possible everybody was super strong, had better magic and crafting skills etc.
So his methods might have been more common there.
I still want to give him the benefit of doubt... but considering he was a sage, he really should start suspecting that things are different here pretty soon as its no longer just one or two things by this point.
@theldras
@cor3zone
Playing devils advocate here.
"Heavy weapons" is a classification of weapons and she could be talking the weapons in terms of what type of weapons they are.
That only makes sense if she already has other weapons tho, but the staff technically is a weapon so... ( or you know, poor translation is always a thing you can blame )
That said we know nothing about her staff, and while yes it is far bigger and should probably be heavier thanks to that...
( Btw steel is 6 to 12+ times as heavy as wood per cubic meter, and i don´t think its that much bigger then the sword )
We don´t know if it's made from some super-light type of wood or if it's hollow.
There is nothing that says her staff must be super dense wood unless she plans on fighting with it and even then the staff got to be pretty big for it to be a even close to a sword.
Unless there is magic bullshit going on that makes things lighter / heavier
In a lot of fantasy worlds, people justify mages only wearing cloth armour and no other weapons by saying that metals interfere with spellcasting( usually iron ).
But if there are no such rules, then yes every mage should have backup weapons for melee combat or when magic is impossible to use.
As for MC´s lack of common sense, he never was a Japanese person but the same argument still applies anyway.
His first life was as a hero in a fantasy world, and his second as a sage.
He was reincarnated twice, not three times.
He is not a death mage after all xD