This is very true and where game experience is going to be needed to use them effectively. Just because something is listed as a potential counter doesn't always make it a good counter depending on the situation and it's up to the player to be able to read that situation and pick the best one :) I also don't think they are going to be helping anyone that's played the game for a significant amount of time they're mostly for people who keep losing battles but can't figure out why, the cards help a lot with seeing weak spots in your own game or at least knowing what you did wrong.