trim echo
For those who love the challenge of doing a challenge mode fight 50 times, there should be a buff in the drops for players that achieved that many wins. I think giving players significantly better drops for taking the time to complete a Challenge Mode Boss/Dungeon 50 times will encourage more players to take the challenge on themselves and reap massive rewards out of it.
For example, a Gold Key could be a guaranteed drop every run or every other run for players that have the 50 Challenge Mode Wins badge for that specific boss, or you could get the Wallaru Challenge Champion badge to guarantee the Gold Key drop in any Wallaru Challenge Mode Instance, with the Nightmare offering two Gold Keys a win due to the difficulty. The value in Gold Keys is very high, and players will charge at any given opportunity to collect them. Now, Challenge Mode will offer those for players who go out of their way to not only complete the Challenge Mode instances 50 times, but also get a Gold Key for every repeated win!