Eeveeto gets one last hurrah this season as he brings the most abominable team known to man vs Fille's relatively sane magbychou balance. To put it into further context, Eeveeto has a grand total of 1 LCOU mon (2 if you count the not so present in tours trapinch), that being Stunky.
I like Eeveeto's t1-2, Fake Out into Technician boosted Covet is a strong opening move with the lack of ghost types right now, so it's a better knock/thief as it lets you run itemless to grab a free eviolite, which it does off Fille's Foongus. He then burns tera t3, which I think is pretty bad on paper in the current LC meta as teras feel better used defensively — but eliminating foongus with tera psychic blast does have its benefits. Fille reveals Scarf Vull next and dodges a Gunk Shot to keep Foo intact, before getting rid of Stunky. By t8, Fille's Mudbray reveals Heavy Slam into Bramblin, which is short of a 2HKO it looks. Bramblin's ability to be a spinblocker that spins and sets hazards would be so good in this meta if it weren't for the ubiquity of Vull and Stunky, but alas — it gets up a spike and switches. After getting a Rapid Spin in the Bramblin heals up with Strength Sap, another useful trait even if it's still unable to 1v1 Vull/Stunky in OU with it. Trapinch gets rocks up as Fille sacks Bray to scout, and Scarf Mag kills Chou after taking some chip. Fille takes this chance to reveal Tera Steel SD Foo, which forces a Bramblin sack. Fille choosing to U-turn here to keep foo out of ajet range from corphish is fine, but gives up Magby in the process while also getting another sack in Meowth. Very confusingly, he also just doesn't take the risk on going for HJK on Corphish, taking some more chip and letting Vull die, but it doesn't matter as Corph lives a raw HJK anyway, so Eeveeto wins.