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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.
Rust translation
ok, I fixed the description.
I feel like you should provide a concise list/array of what are the shifter letters instead of providing the set of letters and then mentioning M/W as at that point it becomes not clear whether there are more letters like this.