I agree its ridiculous only those who have saved up almost every card can actually choose multiple good ones. I have Squall, then fill the rest of my deck with 2 Stars, since it took long enough unlocking the ability to use more than one 2 Star. Those who still are limited to only 1 rare and the rest 1 stars are no match for me. Those who are able to have a deck with a 5 Star and the rest 3 Stars are at a huge advantage over. Doesn't matter how many good 3 or 4 star cards I have, since to use any I would need to replace my 5 Star.

It takes heavily away from the ability of someone to mostly use skill in order to win, but adds a heavy element of needing to grind before you can use most of your good cards. I think if the restrictions were removed and people were allowed to bet gil in battles, it would make triad much more interesting.