[User65554]

Originally Posted by sharingard

Is the part about Arrancar rebels who stole the hougyoku a filler ? Is sure does look like it.

What's the difference between a regular shinigami and Ichigo/vizards ? How come ones have hollows inside and the other don't ? Why does Ichiga has one ?

what's that ?

1) Yep.

2)

Spoiler for hollow powers, vizards etc.:

Ichigo got his hollow during shinigami training, just before going into SS the first time. He had began to transform into a hollow before releasing his soul slayer (and regaining his shiniagami powers). The other Vizards must have gone through a similar process, except probably on purpose, to increase their power, not by accident like Ichigo.

3) Kido is shinigami magic, and can be used to heal, bind or attack (and probably some other things). Various characters have used it.