The fastest known Blastoise shiny hunt is Overworld spawn at Lumiose City — 4 Star or Higher (Hyperspace) in Mega Dimension — roughly 15.3 days of active hunting. Every other game and route is ranked below.
5 shiny-huntable encounters
Mega Dimension
15.3 days
estimated time to shiny
Legends: Z-A spawn chances are estimated as an even share of the species in this zone; alpha chances are the published values. Wild zone Pokemon can also be caught without battling, so real hunt speed varies.
Sword: Isle of Armor
| Rarity | Difficulty | Level |
|---|---|---|
| Common |  | 55–60 |
Shiny is rolled by the den seed, not by your charm.
Shield: Isle of Armor
| Rarity | Difficulty | Level |
|---|---|---|
| Common | | 55–60 |
Shiny is rolled by the den seed, not by your charm.
Sword: Isle of Armor
| Rarity | Difficulty | Level |
|---|---|---|
| Common | | 55–60 |
Shiny is rolled by the den seed, not by your charm.
| # | Game | Location | Method | Rate | Shiny odds | Encounters | Est. time | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mega Dimension | Lumiose City — 4 Star or Higher (Hyperspace) | Overworld spawnLv 36–38 | 0.8264% | 1/1365 | 165,174 | 15.3 days | ||||||
| 2 | Sword: Isle of Armor | Workout Sea Max Raid
| Max Raid denLv 55–60 | 10% | 1/4096 | 40,960 | 47.4 days | ||||||
| 3 | Shield: Isle of Armor | Workout Sea Max Raid
| Max Raid denLv 55–60 | 10% | 1/4096 | 40,960 | 47.4 days | ||||||
| 4 | Sword: Isle of Armor | Stepping Stone Sea Max Raid
| Max Raid denLv 55–60 | 10% | 1/4096 | 40,960 | 47.4 days | ||||||
| 5 | Shield: Isle of Armor | Stepping Stone Sea Max Raid
| Max Raid denLv 55–60 | 10% | 1/4096 | 40,960 | 47.4 days |