There is no denying that flushes are easy to make. “Flush Spamming” can be a last resort of you need to do quick and repeated damage and you don’t have any more power cards. Royal Flushes and Straight Flushes can also be easily attained, but the trick is to build up a large enough multiplier so that you get the highest score possible. If you repeatedly make the same combo (flushes), you will break your chain repeatedly and never raise your multiplier – which will become mandatory quite quickly in order to rack up your scores, gain stars, and unlock new areas.
Mastering the game means that you need to play fast, and continuously make sure that you are building towards unique combos – even if flush spamming is more easy to do – all the while looking out for what powers the enemy is going to activate next :)