When did Blade Kitten happen?

There is no historical event or documented incident known as "Blade Kitten." It's possible you're referring to something else:

* A fictional event: Perhaps from a book, movie, or video game? If you can provide more context, I may be able to help.

* A misheard or misspelled term: There might be a similar-sounding event or person you're thinking of.

Please provide more details so I can assist you!