Add inUrza, Lord Protector, and youve got cost reduction, too
Here's how it works: you cast the creature card, and sometimes it enters "Prepared" while other times you'll need to find a way to make it "Prepared." Once it's "Prepared" you can then cast the spell on its box (following the mana cost and any timing restrictions)
Veteran Pokemon TCG fans will have no problems adjusting to the more casual mechanics of Pokemon TCG Pocket
Jack of All Trades Counterspell What makes Cryptic so strong is how it combines four different modes: counter target spell, return target permanent to hand, tap all creatures, and draw a card
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But this should give you an idea of how to find the best cards for your deck and decide what colors you want to play