@KiShiDo:
And you know they are powerhouse by what? Cuz legendary? Zeff was as well. Most dangerous? Robin is as well.
The facts tell me they are "powerhouses"
BB needs a strong crew, that was pretty obvious and it was obvious that was the reason why he was at Impel Down.
He put this whole plan of becoming a Shichbukai for the sole purpose of getting into Impel Down. Of all the people he could have had, he wanted them. Why them if they aren't strong?
Then we have what Ivankov said in Chapter 538:
_Ivankov: The most fearsome woman pirate ever kept in the prison, Katarina Devon.
The Giant Battleship, San Juan Wolf… Basco Shot, the Drunk.
Names of pirates to set the knees of mighty men a-tremble.
Ivankov: Legendary figures whose deeds were so vile, they weren't even reported in the newspaper!!
Even hyour former BOSS is down there. Yes, he's a nasty one._
"Legendary figures", "fearsome" "Names of Pirates to set the knees of mighty men a-tremble" What do all these statements say about these guys Blackbeard assembled?? Why do you think Oda chose these specific terms to describe these guys??
These guys are amongst the Pirate Elite just like the Shichbukai, the Emperors etc
People do not fear weak pirates with big bounties. Such people would not last long in the GL.
They were feared because they were really powerful & ruthless and had a reputation to justify being feared
If you really want that Nami and Co will stay out of the fight against the BBs okay. Not my problem. I have enough people which understand that Oda isn't the type of autor who won't put his other MAIN characters into the shadow and let other SIDE characters fight the opponents of the SHs just because they are called LEGENDARY.
And once again, i have stated every SH will play an important part be it battles or w.e else. That does not have to include fighting. Every person has an important part to play in the grand scheme of things.
Even the weakest SH Usopp was able to beat an stronger opponent just with ability and with brain.
Yes and sometimes ability & brain isn't enough if you do not have power. Something Kizaru so ruthlessly pointed out to Luffy during this war.
Kizaru: Pure guts aren't enough… Straw Hat Luffy... // If you don't have the strength... there are things you can't save no matter how you try...
What i say is based on all the evidence that has been given, your whole argument is based on the fact you simply think it'd be a bad idea etc