Challenge cooldown:
Each card can be used to perform a maximum of 3 Daily Training challenges per day, with a 2-hour cooldown in between each challenge.
Winning conditions:
0% win rate if total attack is equivalent or lower than that of the NPC monster. 100% win rate if total attack higher than that of the NPC monster. Reward is random and varies based on difficulty level (See "earnings" column above)
Price Rebase:
Earnings will be manually rebased to reflect changes in market prices
Time of Rebasing:
Rebase to be performed once every three days, exact time of rebasing is not disclosed