So, I've been working on a stand-alone card game, but have been harboring thoughts of turning it into a CCG instead. I've only played magic to a limited extent, but I've picked up that there are certain formulas for game balance that a card must have.
My game is particularly tricky, because it doesn't have much in the way of limiting resources (i.e. mana cost), you are only really limited by the number of cards you can have in play at a time. I can see how in Magic, the mana cost required to play a card is the easy way to balance it: better cards cost more mana. My game lacks that ability.
For anyone whos made a CCG, how do you balance cards? Do you have a formulaic method (1 damage is equal to discarding 1 card is equal to 1 mana, etc.), or do you just playtest things unitl they work?