when hollow turn to arrancar
when shingami turn to vizard his reiatsu increase he can use cero and his spead increase but when hollow turn arrancar the only thing he gain that he have a human shape and become weaker he has to release his zanpactou toreturn to his original powerfull hollow form and nothing new so what is the need for the transformation ??
in the begining i thought that they will be able to use the 4 techniques of shingami like kido and they will have strong zanpactou with shikai and bankai
with unique power other than that of their original hollow power
we havn't seen an arrancar that use kidou or the other techniques of shingami so what is the use of transformation wasn't it supposed to break the wall between the hollow and shingami ,please discuss