1. How does the card stand on its own? Is it good, bad, or have potential? Is it worth being played?
Assuming HGSS-on, this card has a lot of potential. It really doesn't work by itself as an effective Do the Wave depends on a benchful of other Pokemon. Being able to do 100 damage with only a Double Colorless Energy as quickly as turn 2 makes Cinccino one of the fastest attackers in the game. Yet, only having 90 HP is a very large handicap for this card as it can be OHKO'd by a number of other Pokemon namely Zekrom, Reshiram and Donphan. In order for this card to be good, it must be paired with cards that allow for quick recovery or a partner Pokemon that will be able to replace it when the game drags further on.
2. What popular metagame decks could it be used in?
None at the moment, seeing as the metagame for the next rotation is still in development. It doesn't have any synergy with the decks being talked about today like Reshiboar, Zekrom Donk, Donphan Machamp and other decks and their variants. However, talk of a Cinccino/Jumpluff combo have been on the street though that deck still needs to be fine tuned in order to hold its own against the other, more popular decks.
3. What combos can you use it with? How so?
The aforementioned Jumpluff allows a replacement for when Cinccino is KO'd. Both utilizes the number of Pokemon in play for power but both Pokemon have a weak 90 HP. Pokemon Catcher could allow Cinccino to be good, as Cinccino would be able to Wave attack its opponent's setup (such as an unevolved Phanpy or Tepig). Playground Pichu also allows you to fill up your bench, maxing Cinccino's attack though that tactic is very risky.
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).
Wish it could be good, as Cinccino is one of my favorite gen 5 Pokemon though, as of right now, the card is having trouble holding its own in the metagame. 2 out of 5 stars.
5. How's the artwork?
Artwork is nice, nicer than most of the other BW cards though most of the BW card artwork is pretty "basic" (for lack of a better term) given that these are the first cards printed for the 5th generation.