simple you check the list of this site www.duelmasters.tv then just remember what they do!
trust me it's not hard at first you will get confused but after a while you will say thing like "uh-oh that's unicorn fish!" or "i want to build a human deck let's take vorg,getto and murasama"
i did it for the first duel master and i'm doing it for this thought i have to admit i only builded a deck (for being exact i builded a human/liquid people deck and i didn't try any other deck because i finded it pretty strong)
thought i have to say that that list is not perfect... first sometime it make error
here what i founded when i played with the first duel master
1) crystal lancer is unblockable they forgot to say that
2) crystal paladin make all creature with blocker return to owner hand not only one
thought there might be some other error i find the other translation right
the problem come with those promo... well for those you can't do anything except the classical "trial & error" or maybe a better search with google!