As I've just wasted EIGHT Inlay Scrolls trying to get a Supreme Skill onto a hero (that took months of Academy to get the Skill Points for), there's a few things I'd like to see. Any one or all of the following:
1) Up the success rate of Inlay Scrolls. 20% is RIDICULOUSLY low.
2) have Inlay Scrolls drop from high level wilds
3) have Hero Medals drop from colour wilds (green and up).
It took me like two months to get get the 400 medals to get those 8 scrolls and they were gone in one minute with NOTHING to show for it
4) have Inlay Scrolls as a regular reward on events / promo giveways
5) lower the price of Inlay Scrolls and put them in Gem Items too (150 gold!?? for something with a 20% success rate!?? you are kidding me! 12 gold would be more appropriate for such an unreliable item)
Any or all of those would be a big improvement.
It's one thing to have a random element in the game, but when months of work go down the tubes with nothing to show for it, that's really, really demotivating.