- #58
there's only one Juha Bach. The twins work for him. And besides that ichigo is not absorbing all of these powers. We already know he got them by learning them along the way or by being born with them. He got his reaper powers from rukia/ Isshin, his quicy power from his mother, Full Bring was taught to him by Ginjou, and his hollow powers come from the training he did with Urahara to get his powers back(and now possibly Aizen's experiment).
after reading that Wikia link im wrong so Loyd and Royd are the one im referring, but still its its easy to guess that Ichigo absorbs powers like Royd (copy/absorbs memories) and Loyd (copy/absorbs abilities)
Juha Bach's real ability is not yet revealed then
and also you say Ichigo was born with them or learned them along the way, i say some powers like the vasto lorde became his latent heridatary trait from his mother Masaki because it seems that Masaki will be the one to kill that vasto lorde hollow that looks like hollow Ichigo and also Ichigo is a power/ability absorber since Rukia's shinigami powers was absorbed by Ichigo in the first chapters if i remember correctly but forgot the exact chapters
and yes my guess is that Masaki is a power absorbing freak too, hopefully in the next chapters she will absorb the powers of that Vasto Lorde Hollow that Isshin is confronted with