You played the MU very well for that being your first time with it, I really enjoyed watching your Fox. IMO, Fox is Shulk's worst matchup in Smash Wii U, an opinion I share with other Shulk mains in the boards.
Shulk is my secondary in this game, I know some things about him. I know it was wi-fi, but some of my notes regardless:
- When he was in Shield, just run away and shoot lasers. Shulk is slower than Ganondorf in this monado. Watch out for Dash attacks though, since that still lunges him forward even in Shield. Stop shooting if he cancels out of it.
- Always throw Shulk offstage when he's in Smash monado. The increased knockback that he deals on Fox is not good for us, he also escapes follow ups far easier at low percents. Putting him offstage will discourage him from using it, since he suffers more knockback and his recovery is bad without Jump.
- Shulks tilts are his best spacing moves. Landing on him is a bad idea because U-tilt covers both sides above him and has absurdly long reach (the cooldown is moot because of the reach). I saw you respecting the D-tilt, which I liked since that's his fast anti-ground approach move.
- Offstage... this is the only time where Shulk wins the MU, imo. He has a lot of traps when he sends you offstage. You may have noticed: Speed lets him go far offstage (even though ZeRo SD'd, L A G J O H N S), Air Slash has scary range to cover the ledge, F-air is stupid good for gimping (I felt the feels when I saw the Fire Fox start up while he was in Smash), etc.
If you get sent offstage, be sure to mix up ways you recover. Do your best not to end up below the stage using Fire Fox: it won't matter how far you space the recovery, you'll never be safe because Shulk has ridiculous range.
- When you sent him offstage with Illusion without his double jump, I thought for sure you had won the match. Shulk's recovery when in non-Jump is bad, really linear with no horizontal options. If you get a Shulk in that position, just go offstage with a F-air (practice the spike) or N-air. He won't survive unless you let him Air Slash back.