If a Mario character is the final DLC fighter, it needs to be Captain Toad! Toad should have been part of the roster a long time ago, and this is a good
STL file Captain Toad // Super mario bros・3D printer model to download・Cults
Captain Toad: Treasure Tracker (Nintendo Wii U, 2014) for sale online | eBay
Captain toad -treasure tracker model - TurboSquid 1595809
Captain Toad's Adventures - Super Mario Wiki, the Mario encyclopedia
Captain Toad's Treasure Tracker won't make you jump, jump | Ars Technica
Captain Toad | Heroes Wiki | Fandom
Captain Toad: Treasure Tracker Walkthrough - Episode 3 Gems, Extra Challenges, And Pixel Toad Locations | Nintendo Life
Captain Toad™: Treasure Tracker for Nintendo Switch - Nintendo Official Site