Personally, I like Revali’s “old” design better than the discount Falco we got in the end. Seems like they had a general fighter/musician theme going on with the Rito in general instead of just Kass in particular, and a cello bow (cellow?) would have been an interesting, unique weapon.

Also, the “eaven earlier” Champion designs included a Kokiri Champion and a Sheikah Champion that were ultimately scrapped from the game, along with whips and hookshots.

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Original Source: Creating a Champion Artbook © Nintendo