Day 1: This is a variant of a very popular character within the Smash roster, but is far from a clone. In fact, it has a unique mechanic very different than any character seen before.
Day 2: You want a Grass-type starter? Well, you're getting a Grass-type, but it's sure as spooky scary skeletons not a starter!
Day 3: These characters are much smaller in Smash than they are in their games.
Day 4: Both a fourth- and first-party character, depending on how you look at it.