Lost Omens Ancestry Guide pg.139
“A weapon with the hampering trait is designed to be shaken, cast outward, or whipped about to control space on the battlefield. You can use an Interact action to thrash the weapon in a square within the weapon's reach. That square becomes difficult terrain until you attack with the weapon, move, or would otherwise stop intentionally thrashing it.”
So how does this work exactly regarding duration? If a character uses the third action point to ‘hamper’ an area, how long does that last? Until the end of the character’s turn? At the beginning of the character’s next turn? Perhaps it lasts indefinitely until the character moves, attacks, or otherwise just decides to stop?
As the whip claw is the closest weapon yet to a kusarigama and it was my preferred weapon playing Nioh, I have some character ideas...