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I'm in the process of filling in my Pokedex in Black 2/White 2 so this question is mostly concerned with the fifth generation. I was wondering if I could trade over a Pokemon (say Haunter) and get an entry in my Pokedex for Haunter and Gengar?
The sending partner receives no entry for the evolved Pokémon, while the receiving partner receives both entries.
There is no feedback to the sender that the Pokémon evolved, and for the receiver it simply evolves on arrival.
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