There are set numbers of each card in the deck. Reshuffling makes sure that certain Special Effects have a roughly equal chance of occurring each turn. With discarding used Critical Cards, it becomes a matter of counting cards to determine tactics.

For example, there are two Ammo Explosion cards in the deck. If both those are drawn on the first turn and discarded, no other tank in the game will have a chance of suffering a Ammo Explosion.

Also I think you need the big damage cards in there all the time and to do this with more cards would alter the likelihood of pulling them too often etc - quite a neat idea to shuffle them back in rather than having 'more' multiple copies...

Yea I like the idea of the card being reshuffle in. It will also help when the tornement play comes out cause gale could say u use a shared damages deck and the reshuffle allows this. I play x-wing and there have been a couple times over the globe that people have altered there dage deck and I feel a shared deck will prevent this problem from even starting.