Unknown key “tag”
execute as @s if score @s dealt matches 1.. if entity @s[nbt={SelectedItem:{id:"minecraft:netherite_hoe",tag:{sythe:1b}}}] run function sythe:lifesteal/apply
scoreboard players set @s dealt 0
execute as @s if score @s dealt matches 1.. if entity @s[nbt={SelectedItem:{id:"minecraft:netherite_hoe",tag:{sythe:1b}}}] run function sythe:lifesteal/apply
scoreboard players set @s dealt 0