it alredy can mate with all non legindarys (rotom is NOT a legindary) only heatran can mate i think :/
You can ask friend for a hipodon mate it with a ditto
Without an action replay, you can't mate dittos with legendary pokemon.
Not legendaries but mostly all Pokemon can mate with ditto
Ditto can mate with almost all other Pokemons, except : Legendary Pokemon, and another Ditto...
Ditto and any other Pokemon can mate at any level. All you have to do is put them in the day-care with the Pokemon you want it to mate with.
Ditto can mate with any Pokemon except if they don't have a gender.Also, Ditto cannot lay an egg with a rare Pokemon, whether it has a gender or not.It can also mate with a boy OR girl, the egg will be the same as the parent Pokemon, not the Ditto.
A Ditto is the best Pokemon to mate with in Pokemon White.
A ditto can mate with any Pokemon
only ditto to make more rotom
Ditto can mate with all 'breedable' Pokemon. So the things that it can't breed with are; Legendaries - except for Manaphy, 'Baby' Pokemon - Pichu, Igglybuff, Tyrogue, etc, Unown, Nidoqueen, Nidorina, and another Ditto.
Use ditto :)
use a ditto, ditto will breed with any Pokemon except legendary