Good Mains Alongside Shulk?

[Xenoblade Hero]

Now don't get me wrong, I feel Shulk is an excellent character pick within this game, especially with his excellent disjointed range and high damage output. Like all other characters in Smash 4 though he has his weaknesses; in Shulk's case Monado Arts cooldown and problems with some rushdown characters. Therefore I was wondering what characters would you all say are good picks alongside him in a competitive setting to deal with said weaknesses?

 

[Berserker.]

This topic is more fit for the Q&A or even the match up thread

So yeah, onions