Harry, impossible to kill?

[Carol]

No: HPFGUIDX 177752

angie:
> Yes but in the last confrontation Harry was "armed" with Draco's
wand and was defending himself with it against Voldemort. The elder
wand again recognised its true master and this time could react
because its master was reacting.  The Expelliarmus spell Harry sent
out is what actually caused the elder wand to reflect the spell back
at Voldemort and this time it could protect its master 100%.
> 
> In the forest Harry did nothing to defend himself and therefore the
elder wand could not react against anything and had to do, all be it
half heartedly and with less power, what the "master" holding it told
it to do.
> 
> Harry could have died if he had chosen to "go on" and catch a train
but he chose to return and end it all bringing Voldemort back with him
like the prophecy says...one can not survive etc.....If Harry had
chosen to "go on" I think Voldemort would have had to use the horcrux
inside Nagini to return.
>
Carol responds:

I don't think that the first confrontation has anything to do with the
Elder Wand at all. For one thing, neither Dumbledore in "King's Cross"
nor Harry afterward mentions the wand in connection with Harry's
out-of-body experience and the destruction of the soul bit. For
another, Harry isn't sure even the second time around that he's the
true master of the wand. I think that the wand had no way of knowing
until Harry made his announcement to LV that Harry was its master but,
being sentient (wands can hear commands and "learn" from their masters
and choose the wizard that they serve), it heard and understood what
had happened with Draco and *chose* to serve Harry, who had captured
it from its master, Draco, rather than Voldemort, who had merely
stolen it from the grave of a former master, Dumbledore, without
defeating him.

The gleam in Dumbledore's eye in GoF comes from the realization that
Harry and Voldemort will share a drop of blood, meaning that Voldie's
attempt to kill Harry (regardless of the wand he uses) will most
likely result in destroying only the soul bit, not killing Harry. But
for that to happen, and for Harry's "death" to have its full effect,
Harry must enter the confrontation unarmed and willingly sacrifice
himself, as his mother did. 

Snape says, "The boy...the boy must die?" and DD answers, "And
Voldemort must do it." That's the message Harry receives from the
dying Snape, and that message makes all the difference. Love--Lily's
self-sacrifice and the resulting blood protection, Harry's willingness
to die to save others, Snape's love of Lily, which paradoxically gave
Lily's sacrifice its power--is the key in the first confrontation. Not
only does Harry survive because of the blood protection, Voldie's
spells won't hold because of his intended self-sacrifice. The wand has
nothing to do with it.

Voldie asks what will stop Harry from dying the second time around
(evidently, the blood protection won't suffice or has expired): "If it
is not love that will save you this time, you must believe that you
have magic that I do not, or else a weapon more powerful than mine!" 
Harry replies, "I believe both" (DH Am. ed. 739).

Although the conversation weaves away from this topic onto DD and
Snape and love again, it eventually centers on the Elder Wand, which
is both the magic LV doesn't have (he's not ist master) and the more
powerful weapon. The last thing Harry tells LV before LV tries to kill
him is that he's the true master of the Elder Wand.

In the first confrontation, LV's spell does not rebound. It kills the
Horcrux, and, had it not been for the blood protection, would have
killed Harry with it. This time, however, both wands recognize Harry
as their master and the spells collide. The Elder Wand flies into the
hand of "the master that it would not kill" (743-44) and Voldemort is
"killed by his own rebounding curse" (744), which never hits Harry (in
contrast to GH) but merely bounces off the Expelliarmus that it
collides with.

As for Voldemort using the Horcrux in Nagini to return, I don't think
he could have done so. His mangled soul seems too helpless to return
to his body on its own. Possibly the soul bit could have chosen on its
own to leave Nagini and return to its master, but I don't know if
that's possible, either. Maybe Voldie would have remained a living
body without a soul, rather like Barty Jr. and would have died the
moment Nagini was killed. I rather think that's what would have
happened but am curious as to what others think.

Carol, who sees nothing "half-hearted" in the AK that killed the
Horcrux and would have killed Harry had it not been for the shared
drop of blood