Marvel Comics Power

How all mutants lost their powers in the Marvel Comics?

I know what happened around 2005, but I do not read comics so I do not know. I was able to search the Internet and to reconstruct what happened, but not concrete. Please someone Can clearly explain the whole story?? Thank you!

During the House of M event of the Scarlet Witch changed reality make mutants the dominant species, but the hero thought he was wrong and attacked her, killing her children. She Angly sad and used his powers to destroy mutantkind, prevent new mutants arise and take the powers of old. " All but more powerful have lost their capacity.

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