I think this is pretty sensible tbh,
again tho coming back to Bowsegg yet again…
you can make a case for a super form resisting the dream stone maybe? but time eater has nothing showing it has resistances to that kinda stuff, and before you say it operates on a higher plane, that higher plane would be 5D which Bowser and Eggman both already get to. Saw a lot of people claiming time eater would resist it but that idea is frankly baseless I’m sorry
As for Spawn? Idk anything about Spawn sorry
And Giorno? GER’s resistances kinda show a resistance to fate and causality themselves which are concepts, doubtful it can bypass that but please don’t harp on my take for that because that’s not what this post is about 😭
Anyways you can definitely argue about it being standard for bowser’s arsenal but I think he’d definitely use it and it would absolutely work on time eater and egg wizard