Do you have any X items? You can spam them on scrafty while umbreon/aurorus is on the field and heal him eventually
Or you can spam'em on Arcanine vs Glaceon matchup, which i think its easier
If you don't, you might wanna check scrafty's moveset, if you have Dragon Dance, maybe ya can settup in front of Glaceon or Umbreon
Just a reminder, his Kazam cant do anything to scrafty. His best damaging move against scrafty is charge beam.
You can lead with leafeon to break aurorus sash while baiting it not to use stealth rocks, since you dont have defog, then you probly can finish it with arcanine or scrafty after being ohko, or with leafeon in case you survive. Im not sure if its AI wont go for rocks anyway tho, thats a bad scenario, you might want to abuse it with scrafty if thats the case.
Aurora veil + snow warning on ninetales might prove useful when dealing with espeon, the damage reduction + the hail damage might be just what you needed to finish it. Use light clay on Ninetales if ya gonna do this.
Avoid taking direct hits (outside of aurora veil) from magnezone
I mean that thing hits like a truck
I'm not sure about this one, but leafeon maybe can 1v1 Espeon under aurora veil if it knows X scissor? (Of course, if you dont use it as bait). Else, ya can probly just stat check it with primarina/ampharos. Same to alakazam.
Check your held items, if you have a sash or somethimg useful, the field seed is sort of strong, +SPA and guaranteed critical strike
If none of this works, i can just trade ya my lvl 90 pangoro (i can lower his level so he obeys ya) and you just kill everything with it.