$data modify storage player_data 1.upgrades.text_color_$(number) set value gray

$data modify storage player_data 1.upgrades.name_$(number) set value "Killstreak"

$data modify storage player_data 1.upgrades.description_$(number) set value "Increases Battoujutsu damage to 125. Killing enemies restores its cooldown."

data modify storage player_data 1.upgrades.character set value assassin

$data modify storage player_data 1.upgrades.upgrade_$(number) set value 7