If I haven't completed any floors to Nyzul Isle on my own but, I have done Nyzul Isle with others a few times on the 100th floor, and have gotten the Weapon on the 100th floor.

Would I only need 250 weapon skill points to unlock the move? Or since I didn't unlock any of the floors yet with me as the leader I have to do 16000 weapon skill points?

Thank you for reading.