Wandlore and more

[Carol]

No: HPFGUIDX 185366

a_svirn wrote:
> 
> > Then again, this speculation provides us with a perfect 
opportunity to blame Harry's use of the unforgivables on all sorts of
dark powers his wand may have imbibed from its twin. Convenient, eh?  
> 
> 
> zanooda:
> 
> Harry only managed to cast successful Unforgivables in DH, when he
was using Draco's wand, not his own. His previous attempt to "Crucio"
Bellatrix with his own wand was unsuccessful. I don't think that it
was Draco's wand that made Harry use Unforgivable curses, but maybe it
was easier for Harry to cast a successful curse with a wand that
already did it a few times, like Draco's. 
> 
> I'm not sure that Draco ever used Imperius curse (maybe on
Rosmerta), but he definitely crucio'ed a few people, so the knowledge
of the curse would be stored inside his wand. I don't blame Harry's
use of Unforgivables on Draco's wand - actually, I don't blame Harry
for using the curses at all :-), I just think that maybe the wand made
it technically easier for Harry.
>
Carol responds:

I agree. Harry had attempted Crucios before, but even when he was
furious and wanted vengeance, he apparently didn't enjoy inflicting
pain and consequently couldn't sustain a Crucio. But he cast one
easily on Amycus, whom he barely knew and had less reason to hate and
desire revenge against that either Bellatrix or (so he thought) Snape.
and he easily cast an Unforgiveable he'd never cast before, an
Imperius. (Granted, the first one was rather feeble and had to be
recast, but he cast it without any hesitation or regret and succeeded
the second time.) I won't get into whether the Imperius, in contrast
to the Crucio, was justified by the occasion. We've trod that ground
too many times. The only question here is whether Draco's wand, which
had already successfully cast both spells (I'm assuming that he and
not a fellow DE Imperio'd Rosmerta) aided Harry, making it easier in
terms of both power and will to cast those spells. I think we should
at least consider that possibility rather than dismissing it out of
hand, and not as an excuse for Harry's behavior so much as an
explanation for what is otherwise hard to comprehend (Harry Potter
willingly and successfully using Unforgiveable Curses).

Nor was I blaming the Elder Wand for Gellert Grindelwald's actions
(murder, torture, coercion, lies, and whatever else he did). I merely
wondered whether the sensed his lust for power and violence (already
evidenced even before he met DD in the incident that caused his
expulsion), and, being attuned to such things and highly suited for
them through its long history of violence, fanned the flames of that
already existing lust. Master and wand learn together, and Grindelwald
had some thirty years (IIRC) to learn with that wand.

Carol, again just raising the possibility and asking questions