I have already kriffed up the Potterverse timeline just by existing. To be fair my existence also kind of erased Voldemort's existence, so I can't complain. So Scarhead no longer needs the Holly wand.
Right now I am at Ollivander's, trying to find a wand that choose me. I told Ollivander that I misplaced my wand. It is technically true, my wand is on my left arm, and my dominant hand is the right one. See, I didn't lie. And thanks to the enchantments on the holsters, he can't sense it either.
Thank you, Obi Wan Kenobi, for teaching us the Art of Half Truth.
It took me about five hours to get what I wanted. The old bastard made me try every wand in the shop except the Holly and Phoenix Feather wand. Guess Dumbledore really wants his Pawn+Hero to have it.
After five agonizing hours, during which I developed a headache, Ollivander brought out my precious and handed it to me. His reluctance to do so was obvious.
As soon as the wand made contact with my skin, blue, silver, green and gold steams of magical energy came out of it.
"Curious... very curious..." muttered Ollivander under his breath.
I mean come on, man, that's just cliche.
"Yes, I think I broke some kind of record for Wand Rejection. Now if you would excuse me, I ache all over. I need a hot shower. Good day, sir."
I bet he is rushing to inform the Old Coot that his carefully laid out plan is in complete disarray. Thank you, Higher Power, for giving me the foresight of finishing my shopping before venturing into the Ollivander's.
P.O.V. Albus Percival Wulfric Brian Dumbledore
Albus had received an urgent letter from Ollivander.
The Brother Wand to Voldemort's been sold. And the buyer wasn't the Boy Who Lived!
He sucked on a lemon drop, deep in thought. Ollivander could not identify the master of the Holly Wand. And Harry Potter will be coming to Hogwarts next year. And the Wand destined for him has been lost.
He had new contingencies to put in place.
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I now have the Holly and Yew Wands. Sorry fanatical fans, but I am not sorry to mess with the continuity. After all, I wanna live. I might be an moron, but I at least have the common sense to not to arm my enemies.
Which means no Holly Wand for Mr I Have A Saving People Thing. Sorry, but not sorry for opening a whole new can of worms.