Quote:
Sort of. More like, defensive Dark spells. Like, I have an idea for a whip type of spell. And remember the fire one that Doholov used on Hermione? Would he consider using spells like that in defense, or just stick to what they learned in DADA (and Snape's book)
I couldn't see Harry using the Unforgivables, and have them work, but I think he would use dark defensive spells. We know he tried to use Sectumsempra and Crucio on Snape. I don't think there is problem as to whether Harry would use a dark spell. I think the problem will be will the spell work? For Harry to use a spell against Severus he is going to have to learn the element of surprise because otherwise it is just going to be block after block all over again. What did Snape say? 'Blocked again, and again, and again until you learn to keep your mouth shut and your mind closed, Potter!' (HBP)