Calendar
Calendar is an Item that uses different effect depending on the user's system time at the point of collection. These effects are shown in yellow text after its basic description.
- Monday: Boosts health.
- Tuesday: Boosts Damage.
- Wednesday: Boosts Damage.
- Thursday: Boosts Speed.
- Friday: Boosts Speed.
- Saturday: Boosts fire rate.
- Sunday: Boosts health.
The effect of each instance of Calendar doesn't change after it was initially collected, even if the game is reopened on a different day or the system time is manually changed.
Strategy
Calendar is difficult to use strategically due to it being uniquely affected by the player's real-world circumstance, in addition to the random chance of its appearance in a run. All of its effects are beneficial with no downsides, but it isn't feasible to plan strategy around obtaining or using any specific items unless the player changes their entire play schedule around using this item most efficiently.