For the simple trade evolutions that don't require held items or anything else (i.e. Alakazam, Gengar etc.), I found it easier just to use the in game GTS. There's nearly always trades available where people have deposited Kadabra, seeking Kadabra, which is the same as what you're asking here
For the simple trade evolutions that don't require held items or anything else (i.e. Alakazam, Gengar etc.), I found it easier just to use the in game GTS. There's nearly always trades available where people have deposited Kadabra, seeking Kadabra, which is the same as what you're asking here