It would be really nice for those of us who are still trying to get all of our heroes to have the 100 fragment bought runes to get a small bonus toward receiving those runes during our near-endless farming of the temple. What I mean is this: every time we get to the advanced rune keeper, if we don't get a fragment, we receive a .5% increased chance of getting a fragment the next time we land on the advanced rune keeper; for every time we land on the legendary rune keeper and we don't get a fragment, we receive a 1% chance of getting a fragment the next time we land on him (if we receive a legendary rune, however, we would receive no bonus at all). Every time we received a fragment, it would reset our bonus to 0. I think this would slightly improve the fragment drop chance without having to spend astronomical sums of gems to do so.