1. How does the card stand on its own? Is it good, bad, or have potential? Is it worth being played?
I think the card has potential to be on it's own, but is best played with other Pokémon, for instance playing it with Espeon MD gives it an extra 20HP, combined with Espeon Prime means you can hit Machamp for weakness and still be using Moonlight Fang
2. What popular metagame decks could it be used in?
In terms of being played in meta game decks, I'm not too sure, it's pretty good to play AGAINST most popular decks in the current metagame, Luxchomp, Dialgachomp etc. quite a few SP Pokémon (Garchomp Lvl. X, Luxray Lvl. X, Dialga Lvl. X etc.) have Poké-Powers, letting you set up a wall pretty effectively
3. What combos can you use it with? How so?
Personally since UD, I've combined Umbreon with Scizor Prime (To make... Scumbreon...) Umbreon acts as a wall against Poké-Powered Pokémon while you've got a Scizor on the bench loading it up with metal energies, when (and if) Umbreon gets K.O'd you can just tank the rest of the game with Scizor (hopefully)...
4. Give it a rating, and explain why you have given it that rating. You can also rate the card by rating the thread itself (out of 5 stars).
Speaking from a personal standpoint I love this card and would give it 5/5 if I didn't also have to consider it from a metagame standpoint, because I do I'll give it 3.5/5. If they (Dialgachomp, Luxcomp etc.) realise what you're doing, they'll just Poké-Turn, put it back down and not Lvl. X it, leaving you vulnerable to Earthquake, Second Strike etc.
As I found out at States today...
5. How's the artwork?
I love the reprint's artwork, much better than the UD version