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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I feel like I wasn't supposed to do what I did. It passes all my tests, not sure why it says failed tests but I guess because it's different than the original. That's disappointing.