How to beat Blackbeard

My gf sees One piece for the first time and rn we are at the end of Marine Ford. To be precisely right after BB ate WBs fruit. Her reaction was "the only way to kill BB is to let him eat another Fruit and he will die automatically"

My gf sees One piece for the first time and rn we are at the end of Marine Ford. To be precisely right after BB ate WBs fruit. Her reaction was "the only way to kill BB is to let him eat another Fruit and he will die automatically"