it is alot fun the hero engine makes it not brick at all its the way to buld it just beacuse the dark ilusion cards are not in this game most of it can be farmed from jaden and yugi packs the rest of the cards are rewards from duelist challanges for example summoner monk is a reward from axels volcanics

goblinberg is a reward from doing reverse duels in zexal or arm it from yuma pack
heroic champion exalaber is a reward from a zexal story mission
i dont know where i got blade armor ninja so please look at the card spoil list for that
twin twisters are from yuzu pack