advancement revoke @s only vb:technical/fish_drowned_necromancer

## Lose bait
execute if items entity @s weapon.mainhand minecraft:heart_of_the_sea run item modify entity @s weapon.mainhand {function:"minecraft:set_count",count:-1,add:1b}
execute if items entity @s weapon.offhand minecraft:heart_of_the_sea run item modify entity @s weapon.offhand {function:"minecraft:set_count",count:-1,add:1b}

## Advancement
advancement grant @s only vb:adventure/drowned_necromancer