Regional eggs, duplicates and shiny planning
Choose Kanto or Johto before buying. Rarity odds, owned-line weighting and shiny rules affect your chance of finding a specific line.
What ten eggs mean for one Caterpie
Current regional pools contain 79 Kanto lines and 63 Johto lines.
Kanto: 79 · Johto: 63 · Same-rarity lines: 27 · Expected eggs: 36
Try it in this order
- Select Kanto, Caterpie and your six starting collection lines.
- Compare the same target across the three egg tiers.
- Enter your real ownership before buying; update it after a new hatch.
This example holds ownership fixed, requests normal Caterpie and uses 10 eggs. Ultra has no Common chance. Expected eggs are an average, not a guarantee.
Buy from the right regional pool
Poké Eggs cost 150 coins, Great Eggs 400 and Ultra Eggs 1,000. Their legendary rarity chances are 0%, 1% and 6% respectively; an egg cannot produce a rarity absent from its table. Choose Kanto or Johto before hatching because Kanto eggs cannot produce Lugia or other Johto-only lines. Free eggs can be hatched on either regional side. Select the target in the odds planner to see which pools and tiers can actually produce it.
Distinguish rarity odds from target-line odds
A 6% legendary chance is not a 6% chance of a particular legendary. After selecting rarity, the game selects an eligible line, giving unowned lines three times the weight of owned ones. Duplicate hatches return half the egg's coin price and award Candy: common 1, uncommon 2, rare 7, epic 15 and legendary 25. Update owned status while planning collection progress. A fixed probability across many hatches is only an approximation if ownership changes those weights along the way.
Read shiny chances and protection separately
Eggs normally have a 2% shiny chance, rising to 5% for Ultra Eggs. A shiny duplicate already owned as shiny is redirected to another shiny of the same rarity under the current protection rule; that does not increase the underlying shiny roll. Candy can make an owned line shiny, costing 40 for common and up to 250 for legendary. The 10% shiny damage bonus is disabled in Daily/Weekly Challenges and both Battle Tower variants. Expected hatch counts remain averages, never guarantees.