When I get B2 or W2, I'm going to Nuzlocke. What do you think about my planned method for fitting the Dream Radar into it?

Said method:
Put the first Dream Radar pokemon into the game. A second cannot be sent until the first is dead. They must be sent in sequence of getting. No deliberate killing-off.

Alternate method: One pokemon can be sent each time a gym is beaten. Again, they must be sent in sequence.

So, which?