A wild idea appears: stat system.
Supplementing the emphasis on character power growth, every character would get a set of stats which would be constantly updated by me in the CS thread. Each character would start at 1 in all ratings. After "major ordeals", I already intended the characters to get a bit stronger in any way they see fit. This would also allow to have a baseline comparison in battle sequences, where each player could have an base idea in the strength differences.
For example, strenght at value of 1 is considered average, and at value of 10 the character could easily destroy an entire castle with his bare hands.
What's your opinion on this?