Almanac

[Did you check your almanac before leaving your house today?]

Description
It is quite a pity that young people nowadays ignore the importance of calendar systems. Doesn't everyone know how awesome almanacs are? How many generations of imperial astronomers have poured their efforts into systems, divination, astronomy, and trigrams to create the perpetual calendar 1 ? Yet, no one bothers to look at it now? Isn't that unbelievable? This ability emerged in order to restore Chinese traditional culture.

Effects
Works like a curse. The user can call out a page of his almanac at any time to target his opponent (it doesn't have to be an enemy). The predictions of fortune on that page would 'influence' the opponent for a certain period of time. This has a 100% accuracy and this attack cannot be evaded. The duration of the effect is random.

Note: The content of the almanac is completely random. The predictions provide a random effect... There have been occasions when it provided a boost to the user's enemy.

Remarks
Only humans would be affected by the curse. The pages of the almanac had long been used for exorcism and to drive away evil, thus the ability can be used as an attack on the opponent. In other words, if the opponent is a human, the curse ability would be activated first. If it is not human, or according to the user's wishes, the combat ability would be activated.