One Chance a Day

"A Great Chance a Day!", originally known as One Chance a Day! (Japanese: 1日ワンチャン！ One day, one chance!), is a type of special stage in Pokémon Shuffle that can only be played once per 24-hour period. If the stage's Pokémon has already been caught, then these stages guarantee at least one item drop per play. Otherwise, the stages are similar to Great Challenges. The cost per play is Heart ×1.
While most stages have a first-clear reward of Coins ×200, and a reward of Coins ×20 for subsequent clears, this stage type considers each day as a separate stage. Therefore, the first-clear bonus is available every time that the stage is cleared.
The first few of these stages, those being for Pinsir and Jirachi, originally used the name "One Chance a Day!". Later in 2015, a variant called "One Great Chance a Day!" appeared, where the base catch rate of the Pokémon would increase with every day that passed during the event. This variant was later renamed to "A Great Chance a Day!". 
For the game's end-of-service period, most stages began running on a consistent 24-week schedule. In the case of A Great Chance a Day, stages rotate on an 8-week cycle instead, with each lasting one week. Additionally, certain stages run for shorter 3-day periods on specific date ranges yearly.
Compared to the game's live service period, all of the end-of-service stages in this format are titled "A Great Chance a Day!", and no longer increase base catch rate by passing days.
==Drops==
If a Pokémon has already been caught, then its stage has a chance to drop items. One Chance a Day stages generally have unique drop rates and item offerings, as opposed to a uniform pattern across the stage format.
Drop rates can be increased if the Drop Rate Increase (DRI) effect is purchased from the .
==Rotating stages==
===Week , , and ===
If Pinsir has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 25% chance to drop Personalized Skill Booster ×1
* 25% chance to drop Personalized Skill Booster ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	PSB ×1 	Averagedrops/run
100% 	25% 	25% 	1.5 PSB
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	PSB ×1 	Averagedrops/run
100% 	43.75% 	43.75% 	1.875 PSB
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Tornadus (Incarnate Forme) has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 12.5% chance to drop Personalized Skill Booster ×1
* 6.25% chance to drop Mega Speedup ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	MSU ×1 	Averagedrops/run
100% 	12.5% 	6.25% 	
* 1.125 PSB
* MSU
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	MSU ×1 	Averagedrops/run
100% 	% 	% 	
* PSB
* MSU
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Frillish (Female) has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Heart ×1
* 50% chance to drop Heart ×1
* 12.5% chance to drop Mega Speedup ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
Heart ×1 	Heart ×1 	MSU ×1 	Averagedrops/run
100% 	50% 	12.5% 	
* 1.5 Heart
* 0.125 MSU
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
Heart ×1 	Heart ×1 	MSU ×1 	Averagedrops/run
100% 	75% 	% 	
* 1.75 Heart
* MSU
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Thundurus (Incarnate Forme) has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 12.5% chance to drop Personalized Skill Booster ×1
* 6.25% chance to drop Mega Speedup ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	MSU ×1 	Averagedrops/run
100% 	12.5% 	6.25% 	
* 1.125 PSB
* MSU
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	MSU ×1 	Averagedrops/run
100% 	% 	% 	
* PSB
* MSU
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Jellicent (Female) has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Heart ×1
* 50% chance to drop Heart ×1
* 12.5% chance to drop Level Up ×1
 Default rates
Drop rates	Drop rates	Drop rates 	Averagedrops/run
Heart ×1 	Heart ×1 	Level Up ×1	Averagedrops/run
100% 	50% 	12.5% 	
* 1.5 Heart
* 0.125 Level Up
 DRI rates
Drop rates	Drop rates	Drop rates 	Averagedrops/run
Heart ×1 	Heart ×1 	Level Up ×1	Averagedrops/run
100% 	75% 	% 	
* 1.75 Heart
* Level Up
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Landorus (Incarnate Forme) has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 12.5% chance to drop Personalized Skill Booster ×1
* 6.25% chance to drop Mega Speedup ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	MSU ×1 	Averagedrops/run
100% 	12.5% 	6.25% 	
* 1.125 PSB
* MSU
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	MSU ×1 	Averagedrops/run
100% 	% 	% 	
* PSB
* MSU
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Cosmog has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 25% chance to drop Skill Booster S ×1
* 25% chance to drop Exp. Booster L ×1
 Default rates
Drop rates	Drop rates 	Drop rates 	Averagedrops/run
PSB ×1 	Skill Booster S ×1	Exp. Booster L ×1(1,000 exp)	Averagedrops/run
100% 	25% 	25% 	
* 1 PSB
* 0.25 Skill Booster S
* 0.25 Exp. Booster L (or 250 exp)
 DRI rates
Drop rates	Drop rates 	Drop rates 	Averagedrops/run
PSB ×1 	Skill Booster S ×1	Exp. Booster L ×1(1,000 exp)	Averagedrops/run
100% 	43.75% 	43.75% 	
* 1 PSB
* Skill Booster S
* Exp. Booster L (or exp)
Pokémon	Pokémon	Type	HP	Time	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Time	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Week , , and ===
If Cosmoem has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 25% chance to drop Skill Booster S ×1
* 6.25% chance to drop Raise Max Level ×1
 Default rates
Drop rates	Drop rates 	Drop rates	Averagedrops/run
PSB ×1 	Skill Booster S ×1	RML ×1 	Averagedrops/run
100% 	25% 	6.25% 	
* 1 PSB
* 0.25 Skill Booster S
* RML
 DRI rates
Drop rates	Drop rates 	Drop rates	Averagedrops/run
PSB ×1 	Skill Booster S ×1	RML ×1 	Averagedrops/run
100% 	43.75% 	% 	
* 1 PSB
* Skill Booster S
* RML
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
==Yearly stages==
======
Pikachu (Enamored)'s stage is available from February 13th to 15th each year, commemorating .
If Pikachu (Enamored) has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Hearts ×3
* 50% chance to drop Coins ×1,000
* 25% chance to drop Raise Max Level ×1
 Default rates
Drop rates	Drop rates 	Drop rates	Averagedrops/run
Hearts ×3 	Coins ×1,000	RML ×1 	Averagedrops/run
100% 	50% 	25% 	
* 3 Hearts
* 500 Coins
* 0.25 RML
 DRI rates
Drop rates	Drop rates 	Drop rates	Averagedrops/run
Hearts ×3 	Coins ×1,000	RML ×1 	Averagedrops/run
100% 	75% 	43.75% 	
* 3 Hearts
* 750 Coins
* RML
On the initial board for this stage, the player must match 3 Pikachu (Enamored) in one of three available columns. Choosing the correct column will drop Coins into it, and then transition the board into a more-open layout. During the game's live service, the correct column would change each day. However, in the end-of-service version, the center column is always the correct one.
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
======
Shaymin (Land Forme)'s stage is available from February 18th to 20th each year.
If Shaymin (Land Forme) has already been caught, this stage has a chance to drop the following items:
* 25% chance to drop Personalized Skill Booster ×1
* 12.5% chance to drop Personalized Skill Booster ×1
* 6.25% chance to drop Personalized Skill Booster ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	PSB ×1 	Averagedrops/run
25% 	12.5% 	6.25% 	PSB
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	PSB ×1 	Averagedrops/run
43.75% 	% 	% 	PSB
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
===Jirachi===
Jirachi's stage is available for the following date ranges each year:
* January 6th to 8th
* July 6th to 8th (commemorating )
If Jirachi has already been caught, this stage has a chance to drop the following items:
* 100% chance to drop Personalized Skill Booster ×1
* 25% chance to drop Personalized Skill Booster ×1
* 25% chance to drop Personalized Skill Booster ×1
 Default rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	PSB ×1 	Averagedrops/run
100% 	25% 	25% 	1.5 PSB
 DRI rates
Drop rates	Drop rates	Drop rates	Averagedrops/run
PSB ×1 	PSB ×1 	PSB ×1 	Averagedrops/run
100% 	43.75% 	43.75% 	1.875 PSB
Pokémon	Pokémon	Type	HP	Moves	Catchability	Catchability	EXP	Notes
Pokémon	Pokémon	Type	HP	Moves	Base 	 	EXP	Notes
 	 	 	 	 	 	 	 	
==Live-service stages==
==Trivia==
* Pikachu (Enamored)'s HP is 3,939. This may be a reference to a Japanese pun on the digits 3 ("san") and 9 ("kyu"), which together phonetically sound like the English phrase "thank you" ("san-kyu").
==In other languages==
One Chance a Day!
A Great Chance a Day!
Category:Special stages