Ok, here's the simple answer;
This is the first time I've ever heard of that character:
Now you see, we have a couple different ALTERNATE TIMELINES to choose from:
>:)
A) The "fated" aka "intended timeline" in which you demand I answer your question with an educated, learned response made with full knowledge on who this "Smash Shulk" is. This would require me doing a crap ton of research into this character to find out what their powers are, what their history is, how they react in fight scenarios, etc etc.
B) An alternate timeline in which I leave once more bc I have 60+ notifications to catch up on (lol).
C) An alternate timeline in which I simply post this one last comment and unfollow this post as I previously stated I already said my side of the debate.
D) An alternate timeline in which Gigi-san makes another speculation comment and I once more point out that the two of us have roughly the same idea, yet we disagree on a few details.
E) An alternate timeline in which I am actually Diavolo walking among us, and I shall now slaughter you all for discovering my secret.
F) An alternate timeline in which we have a threesome while monkeys fling poo at us.
That's the concept of alternate timelines; get it now? Just because you think something will happen, or if you saw a specific possible future with your foresight powers, does not guarantee it will happen (also that last option was a joke to get my point across, lmfao)