Base on DLM website during last duel carnival on december 2020, we had a total of 900 gems. This duel carnival we now had 820. In conclusion, Konami reduce from 900→820 gems, basically we lost 180 gems. Please write in the survey that we're not idiots and that we're watching how they deplete our only resources.
20 hours per month still isn't bad. You can play like, 2 hours per day for just 10 days.
5 hours per month is TOO LITTLE. What kind of game company wants their player to play their game for only 5 hours per MONTH?
It's obvious the moment any game company discover players didn't play the game as often as they like, they'll try to change their game to make players play more often.