According to me getsuga tenshou is not the real ability/power of zangetsu, it is merely inherited from ichigo's father who has the same ability. The true ability is actually possesed by the hollow form of ichigo and since the actual ichigo and the hollow form don't trust each other the ability cannot be executed ( Remember the battle between zaraki kenpachi and ichigo , zangetsu clearly states that if the owner of the soul slayer and the zanpakthou dont't trust each other then their power is diminished). I think that ability will have to taught by the hollow ichigo to the real ichigo.
what r ur opinions ?xd
what r ur opinions ?xd