This combo if for the two cards called:
Pokeflute
Gust of wind

When you have a pokemon that does very little damage and both you and your 
oppenent need just one more prize card this comes in very hand, especially 
when his pokemon are very strong. Use your pokeflute and bring back a pokemon 
that has very little HP such as a rattata. After you bring it back, use your 
gust of wind and attack with an attack that will knock it out, and boom. You 
can then take your last prize card and gloat of victory.

                                       Dan Hoctor (solid snake)