luck

Your deck can be perfect and still lose. I had a green blue deck with all the best cards that always lost because of luck. I was mana hosed, mana saturated, wrong color or wrong spells. The deck was just unbelievably unlucky. I also had a red blue deck that could do no wrong. Whatever card I needed I drew. The deck never lost and never got mana screwed it was incredible. I dont know what determines the luck factor of a deck but if I find out ill let you know.