How does a spec card level up and how is that represented "in game"?
Thanks for the question! At the being of the game each player will get to choose a spec card (magic, ranged, or melee for good and undead, human, or demon for evil) and this card will start out in front of the player. The effect of the card is ongoing each turn.
On any of their turns during the game (when they can afford it), that player may pay the level up cost of the chosen spec. Once they pay that amount they will now have the more powerful ongoing effect for the rest of the game.
This adds a small focus for the player if they want to lean towards a certain spec, and also adds some reply to the game as you can start each game with a different character and spec.
Please let me know if this doesn't make sense. =)
I'll also address this in the rule book!
*Edited for clearification