Strategy combat game using chess pieces and cards with moves and stats on them.
There are 6 possible units, with different numbers allowed corresponding to the chess pieces. So: 1K, 1Q, 2B, 2Kn, 2R, 8P. That breaks down to three “rarities”: 1, 2, or 8 instances of a given unit.
So a card might say, “Pawn - Basic Attack” or “Queen - Fireball”, and you know how many instances of that unit you may have in your squad. It also means really powerful units as King and Queen can be designed to not overlap, allowing certain combos to be special.