all full, 60 card decks with cards that are completely compatible with all other Pokemon cards too so if there are any that you particularly like and want to continue playing with outside of the Battle Academy, you certainly can
Coloring is a chance to be creative
These can be true doublers like Doubling Season and Branching Evolution or pseudo-doublers like Hardened Scales and Pir, Imaginative Rascal that technically only add an additional counter, but are close enough since counters are often distributed one at a time
Either way you put this in play is fine
Condition matters, and we're here to guide you, covering everything from Near Mint (those almost perfect or near-perfect cards, think PSA or CGC 10s!) to the less desirable damaged cards that nobody wants
As a rule, trainer card values tend to diverge wildly in English and Japanese, with each audience preferring different characters