There are a few creative ways to win a Pokmon TCG match, but the best way to collect prize cards will always be attacking and knocking out as many of the opponent's Pokmon as possible.
If you would shuffle the card into your library, it gets shuffled into its owner's library instead
Once the exchange has happened, either of the two creatures leaving the battlefield has no effect on the other creature's text box
Under good light, check for edge and corner whitening, surface scratches, off-centering, and creases
You'll have all the card draw you could need, and be able to pump up a flier with +1/+1 counters to make a potent, evasive threat
Life gain is largely incidental in these cases, used as a buffer for the Draw-Go strategy