Elena, I highly doubt one doppelganger has the power it would take to bring your friend back. Likewise, Dean. Sam is the one with innate power and I don't hear anything about him wishing or performing a spell, himself. From what I understand, he was a part of the rescue party.
And, Elena, you didn't bleed on a werewolf in New Orleans or this Fred person. Perhaps you began a chain, or the unwieldy spell became even moreso once that power had nowhere to go. I wouldn't blame myself for errant magic. And I hardly blame you.
done
And, Elena, you didn't bleed on a werewolf in New Orleans or this Fred person. Perhaps you began a chain, or the unwieldy spell became even moreso once that power had nowhere to go. I wouldn't blame myself for errant magic. And I hardly blame you.