Is attacker limited to kills or is it any harmful actions?
[Active - Advanced: Thousand-Man Pins] -
The secrets to the strength of the Legendary White Whistle 'Ozen', these pins are said to bestow the strength of a 1000-man each. Its user will negate and gain a temporary immunity to the first harmful action targeting them. If they're targeted by the same player during that window, they'll counter attack, killing them. A [White Whistle] will super-kill when retaliating.