The daily system provides some rubies but its beyond slow your looking at 5-7 days to get enough rubies to get a chest the lowest amount of days is 4 assuming each daily you get decided by rng is worth 25 each time.

It would make more sense if you got 3 dailys each day or if you got a daily every 6 hours because having to wait an average of 5-7 days for a jeweled chest which is most likely going to not give you anything anyway is very disappointing i have opened 31 jeweled chests so far and completed all campaigns i have never once gotten a epic equipment piece beyond the one that was sent in the news letter when the new update came out.

http://prntscr.com/84nq7x it says 2 epics but one is a gold bar and the other is the epic from the news letter