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Complete Wonder Trade guide for Polished Crystal. Trade any Pokémon for a random one at the same level in Goldenrod. 4x shiny rate (1/1024), 33% Hidden Ability chance, held items possible, 50/50 gender ratio. Offline Wonder Trade system explained with full mechanics and optimal strategies.
Polished Crystal has its own version of Wonder Trade that works offline - basically emulating the Gen VI–VII online feature without needing any connectivity. You trade a Pokémon and get a random one back at the same level, with boosted chances of it being Shiny, having a Hidden Ability, or holding an item.
It's a fun way to mix up your team or hunt for specific things you might not want to breed for or completing your dex.
Source: wonder_trade.asm, valid_level.asm, variant_forms.asm
That's it!
Here's where Wonder Trade gets interesting:
The Hidden Ability thing is huge - normally those are a pain to get, but Wonder Trade gives you a 33% chance!
Unlike the main series games, you can trade an Egg and get a random Egg back. Neat if you want to hatch something unexpected.
Wonder Trade won't give you:
Source: valid_levels.asm
Here's everything you can receive through Wonder Trade. The level of the Pokémon you trade determines what's available - you'll only get species that can exist at that level.
Showing 315 of 315 available Pokémon
The higher the level, the better your item odds. At low levels you'll usually get nothing, but higher levels guarantee something and open up rarer items.
| Item / Level | 1–10 | 11–20 | 21–30 | 31–40 | 41–50 | 51–60 | 61–70 | 71–80 | 81–90 | 91–100 |
|---|---|---|---|---|---|---|---|---|---|---|
(Nothing) | 70% | 60% | 50% | 40% | 30% | |||||
Oran Berry | 10% | 10% | 10% | 10% | 10% | 30% | ||||
Sitrus Berry | 10% | 10% | 10% | 10% | 10% | 10% | 30% | |||
Lum Berry | 4% | 10% | 10% | 10% | 10% | 10% | 10% | 30% | ||
Leppa Berry | 4% | 4% | 10% | 10% | 10% | 10% | 10% | 10% | 30% | |
Figy Berry | 4% | 4% | 10% | 10% | 10% | 10% | 10% | 10% | 30% | |
Starf Berry | 4% | 4% | 10% | 10% | 10% | 10% | 10% | 10% | ||
Ganlon Berry | 4% | 4% | 10% | 10% | 10% | 10% | 10% | |||
Petaya Berry | 4% | 4% | 10% | 10% | 10% | 10% | ||||
Leichi Berry | 4% | 4% | 10% | 10% | 10% | |||||
Salac Berry | 4% | 4% | 10% | 10% | ||||||
Apicot Berry | 4% | 4% | 10% | |||||||
Lansat Berry | 4% | 4% | ||||||||
Custap Berry | 4% | |||||||||
Ability Capsule | 1% | 1% | 1% | 1% | ||||||
Lucky Egg | 1% | 1% | 1% | 1% | ||||||
Eviolite | 1% | 1% | 1% | 1% | ||||||
Leftovers | 1% | 1% | 1% | 1% | ||||||
Rare Candy | 1% | 1% | 1% | 1% |