The only way,unless you have action replay, is to either use master balls, or to use different kinds of poke balls. example: net balls, nest balls, dusk balls, quick balls and timer balls, but there are more poke balls, that are way different than these.
The cards are random; there's no "secret marking" or anything you can use to tell what packs have "good cards". If there were, no one would buy any of the other packs.
free pokemon cards
yes you can get lots of you get different in each pack you buy
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.
shadowless Pokemon cards are very rare and they have no shadows I HAVE THE COMPLETE COLLECTION OF SHADOWLESS POKEMON CARDS
It depends what the Pokemon cards are.
the chance of getting a pair of aces form a deck of cards is .04 or 4%.
free pokemon cards
you have a 1/13 chance of getting an ace in a pack of cards
Mathimatically speaking these are the odds to get Full Art Pokemon (Pokemon ONLY). Next Destinies: 12.76595744680851% Dark Explorers: 13.95348837209302% Dragons Exalted: N/A until release date
depends on the amount of black cards there is in the pack
48/52 or 92% chance of NOT getting an ace.
There is a 1/13 chance of getting an L. There is a 2/13 chance of getting an I. There is a 3/13 chance of getting an E. There is a 1/13 chance of getting a C. There is a 2/13 chance of getting a T. There is a 2/13 chance of getting a N. There is a 1/13 chance of getting an S. There is a 1/13 chance of getting an H.
The chance of getting 5 red cards if they deal you only 5 cards out of 52 is (1 in 13) times (1 in 12) times (1 in 11) times (1 in 10) times (1 in 9) or (1 in 154440).
A 1/13 Chance (Probability).
There are 52 cards in a deck, and 4 suits of 13 cards each.So the probability is 1/13 = 0.077
The chances are 12 out of 13 that you will not get an ace on the first draw.
yes you can get lots of you get different in each pack you buy