You should make your Espeon Timid, 252 Speed/HP. I mean it would really suck getting out-sped by Jolly Breloom and possibly getting OHKO'd by Bullet Seed. Also setting up quick screens is better than taking a hit and then setting them up. Since your Lanturn is defensive you should use Scald over Surf and maybe Volt Switch in place of Thunder. I would keep Gyarados though as with screens he should get a couple of DDs in, though I would switch intimidate with Moxie. -_-
Maybe switch out Dragonite for the superior specs user in Latios and I would use Scizor over Toxicroak just so you can have a Steel type, have some priority and have some U-Turn/Volt Switch thing going with Lanturn. Or maybe a Jirachi so you can set up SR and have a decent U-Turn/60% of para with Thunder. Though no priority though.
That's my advice, hopefully I helped. -_-
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