The best tip you can follow is to playtest, fail, and then modify the deck again, removing any card that didn't help you in the match or replacing it with a different option you want to try.
Battles are good, especially if you get decent value out of the front card and see the transformed side as extra
Here's a breakdown of the card rarities in Pocket: 1 Diamond: Common - Weaker basics and Stage 1, basic trainers 2 Diamond: Uncommon - Stronger basic and Stage 1, supporters 3 Diamond: Rare - Strongest basics as well as stronger Stage 1 and Stage 2 4 Diamond: Double Rare - Pokmon ex 1 Star: Art Rare - Full Art of basic Pokmon 2 Star: Super Rare + Special Illustration Rare - Full Art of Pokmon ex and supporters 3 Star: Immersive Rare - Pokmon with immersive art 4 Star: Crown Rare - Gold art cards The following Pokmon are all Special Illustration Rare or higher, meaning they are 2 Star cards or more
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(2018-03-16) The source of the copy is the same as the source of the original ability
