Occaisonly while I am working on games, I find that I have 50-70 cards in my game. In my oponion, you could play a game with that many cards, but wouldn't it be a little weird? I mean, in a TCG it is normal for both players to have 60 cards each (usually, it's a rule to have a certain amount of cards. The lowest I've seen in a card game is 40), but in a board game it is different.

So, how many cards is too many cards?

The one good, thorough estimate I've gotten for my game ("Mage Warfare") stated that there would be 121 cards on a plate. The cards would be 63mm x 88mm (very close to 2.5 x 3.5). And this printer knew exactly what was required to produce a ccg; tuck boxes, finseal for packs, distribution of rare cards, etc. Are there maybe different types/sizes of these plates? I don't know, I'm new here. You can see my long-winded posts is the Game Production discussion. (edit): Oops! Make that Game Publication!