You can trade Pokemon Cards online at sites as eBay but also tradecardsonline is a good site specialized just for difference trade cards. You can also try differences Pokemon forums.
You could buy them at Target!
you could get one in any card pack
Pokemon cards
There is not shadow Pokemon card but there is dark Pokemon cards.
shadowless Pokemon cards are very rare and they have no shadows I HAVE THE COMPLETE COLLECTION OF SHADOWLESS POKEMON CARDS
Energy cards are usually included in almost every pack you get (at least the ones I get. That's a lot of packs!), so you shouldn't worry about getting energy cards as much as you should about where to get packs of Pokemon cards in general.
No. there are Pokemon cards. then there ar yugioh cards. they are different
It depends what the Pokemon cards are.
No they are not. I have been collecting Pokemon cards for almost my whole life and majority of the cards are trainer cards.
Denios is Greek, its meaning is along the lines of: Terrible / Powerful / Fearful
You could try Target, Toysrus, or Walmart.