that wasn't my intention.
I was just saying that her ability seems to be very powerful, and in fact, is powerful enough to take out around 'half' of the major powerhouse characters in one 'go' (one hit kill, hard to avoid, almost no conditions to activate).

it's good if luffy learns some "haki" here, just some basic applications of it, after that, when he gets to NW and meets up with the big guys again, he could learn the rest of it.