An idea for a carrer mode will be, to halve the starting spellbook points from 120 to 60 and reduce the total life points by ten!
I have tried it, and the mages are very limited to their basic tactics, this way! But this was okay!
After each game, the winner receives a fixed amount of spellbook points, a little more than the Loser!
Lets say, 20 points for the winner and 17 points for the Loser! So balancing is preserved and no one can outgrow the other one! Also everyone gets 2 more total life points, after each game!
The distinctiveness is, that every destroyed card, stays destroyed! So if one creature dies in the arena, it's gone from your book for further games!! If you want to have it in your book again you must spend the points to add it.
If it's not possible to make progress with the mage this way, maybe the reward must be higher!
Tell me what you think about that!
Merry Christmas everyone!