Thanks for writing this. Its like i knew all this in the back of my head, but i needed someone to say it to me. I cant tell you how many games i have lost because of card advantage and tempo. Tempted to use everything i had on the enemy hero, as they slowly build a card advantage. I would constantly find myself losing games where the enemy health was in single digits, while mine was almost topped. I would exhaust all my options, and not be able to properly use my mana resource due to a card disadvantage. Learning the balancing act is crucial.
Thanks again, I look forward to reading more