HeartGold Generations areas

Mt. Silver

Leads to Mt. Silver Cave

Grass

Pokémon	When	Level	Chance
Mewtwo	Any time	41–43	30%
Deoxys	Any time	42–44	30%
Groudon	Any time	42	20%
Jirachi	Any time	41–42	20%

Surfing

Pokémon	When	Level	Chance
Poliwhirl	Any time	30–48	91%
Poliwag	Any time	30–40	9%

Old Rod

Pokémon	When	Level	Chance
Magikarp	Any time	10	95%
Poliwag	Any time	10	5%

Good Rod

Pokémon	When	Level	Chance
Poliwag	Any time	20	60%
Magikarp	Any time	20	40%

Super Rod

Pokémon	When	Level	Chance
Poliwag	Any time	40	84%
Magikarp	Any time	40	16%

Items

Reaper ClothX Sp. Def · hidden