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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.
Maybe specify on the "other characters" part a bit more. If the problem wanted me to avoid ANY character outside of the parameters it sure used a poor example and poor test cases.
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