I want to make a barb, but no axes, i do mallet, how i make a beast? In scepter?

It's the deal, you make him in a scepter, axe or sword, cannot do the mallet/mace class weapons. Sadly. But truly. It's like the motörhead track fight, "fighting in the west, fighting in the east, fighting like a beast"

https://classic.battle.net/diablo2exp/items/runewords-110.shtml

https://diablo.fandom.com/wiki/Scepters

Oh damn, i read wrong, it was wrong. Hammers are truly possible. How could i miss it xD Swords ... is not permittable.

Hammers:

https://diablo.fandom.com/wiki/Hammers

But on this site, they are simply all called maces. No wonder everyone's getting confused.

https://classic.battle.net/diablo2exp/items/normal/maces.shtml

Scepters are normally max 3 sockets.

Cadaceaus has more sockets, not sure if the runeword works for these as they are Mace Class... check runeword specifics.

Yes beast can be made in War Scepter/Caddy unless they patched it