First printing includes 106 cards with square-cut corners. It does not include any concentration indicator in spell duration entries.
Version 2 includes 106 cards with rounded corners and diamond-shaped "C" concentration indicators in spell duration entries.
Version 3 includes 153 cards—incorporating Cleric Domains (43 cards) and 4 additional cards—in the same format as version 2.
Version 3 (corrected) - Count remains at 153 however, comprised of 105 Cleric Spell cards and 48 Cleric Domain Spell Cards - NOTE: 1 Cleric - Nature card is basically blank.