Since Undo Dog and the Eraser dude are canon to the Mario universe, I wonder if we'll get any resistances to existence erasures o3o
Hell, people think that's why Peach is nowhere to be seen and that her castle is gone in the first place as well as Toad saying "This is why I'm a cat person" which seems to imply Undo Dog went and deleted Peach's castle. It's doubtful, though, unless they canonically recognize the fact that the eraser can't erase Mario in the courses. Or what if the ending has Bowser getting erased but he somehow comes back? Undo Dog can likely override the existence erasure of the Eraser as well and both are nice additions to the verse even as canon characters due to their hax abilities. It's mot like EE hasn't happened before amd a character still came back from it in this series.
Mario also gets to add architect to his lomg list of professions that support his intelligence.
And of course, Dry Bones shell means lava resistance amd nigh-invulnerablity or maybe even non-corporeality/non-physicality/intangibility as attacks seem to go through him when he activates it rather than dissipating like with the Star. Although, granted, we've only seen it be undaunted by fire stuff which Dry Bines naturally do resist, although it's worth noting that Mario seemingly disappears while the bones fall apart like when a Dry Bones it stomped on and then reappears when reassembling. Also worthy of note is that the fire in the series has consistently been able to go through objects plenty of times, with the biggest example being Bowser's purple or whatever fireballs in his chase with you in 3D Land where that fire passes through several objects yet can hurt Mario as well as New! having multiple spat fireballs being able to pass through the floors and walls and all.
Overall looking pretty nice. Also, the changing from the Sun to Moon can warp the world which includes making a vast, starry sky unless we simply write that off as time advancing, albeit that wouldn't make sense given the effect it can have on the world at night like harsh winds in a cold desert, super slippery ice, turning all water sources into poison, manipulating space by turning a course upside-down, and changing the gravity of either the course or the enemies on it (which can override Goomba's abilities to adapt to multiple plamet's different gravities from Galaxy). It's also worth noting that collecting the Moon instantly OHKOs in an omnidirectional wave.
Isn't it also implied that Mario himself can create the levels, or at least the blocks and enemies in them and stuff from the promo material? They already are aware of the fourth wall, and being in these advertisements makes sense in that case. Wouldn't be the first time we've used that kind of stuff for character's abilities or feats. The avatars for solo creation and co-op creation are also color-coded to the Bros. colors and the cursors are their gloves IIRC. That seems like enough evidence for creation as an ability.
Also, much like in tbe New! series, Mario can tank Kanek's transmutation magic without being transmutated amd so can the other playable characters. Bowser Jr. and Bowser are either immune or take damage like evey other enemy, but I forget which one is true. Either way, it's possible that resitance can be applied to them as well.
Just a few notes haha.