~Espeon~
I've been running a Timid Light Clay screener with 252 HP / 252 Speed / 4 SpA. I forewent any healing and instead run both screens, Psychic, and Dazzling Gleam. It has been effective so far, and one upside is that even with no SpA investment, it's guaranteed to OHKO Gengar and almost guaranteed to OHKO Mega Gengar (with no defensive investments, on the turn that it Mega evolves since you can outspeed it) with Psychic. The downside is that if the opposing Gengar is Timid 252 Speed as well, you run a 50/50 chance of being outsped. Fortunately if it's not Mega Gengar, you will always survive 1 Shadow Ball (or 2 with Light Screen)... but if it's already mega evolved, then you're out of luck because it will outspeed and OHKO you.
A Bold Espeon might allow you to take an extra hit or two, but I like being able to outspeed and screen or threaten the opponent rather than being a wall. Then again, I don't run Morning Sun, so if you are going for a bulkier attacking variant, Bold might work.
Do the effects from using poke-amie or whatever its called apply to battle spot battles too?
They do not.
As an aside, some of the sets I've seen on Battle Spot have been really depressing lately. I spent 30 minutes in a battle last night against a Roosting Leftovers Zapdos, Leech Seed Rocky Helmet Chesnaught, and Softboiled Blissey last night because I was playing with my B lineup and didn't bring a Taunter or setup mon who could survive the setup process without having to switch. Neither of us lost a single mon (as I didn't have any that could safely OHKO his mons without him switching) and the whole thing was an annoying switch/heal-fest. This was several battles after I lost 2 of my mons to an incredibly bulky Snorlax spamming Rest and Fissure despite the fact that his other two (dead) mons got outplayed and dispatched early. Fortunately I won all of my other battles last night, but despite the winning record I actually felt like I'd wasted my evening. I suppose this is what happens when I play my B lineup which contains no Minimize users and no great Taunters. I hate having to "rely" on that kind of stuff, but frankly that's what wins games in the increasingly gimmicky Battle Spot meta, I guess.
One highlight of the evening was surprising an enemy Garchomp who mistook my Moltres (like I said, it's a B lineup!) for Swords Dance bait... Choice Specs HP Ice put a quick end to that.