you can
a;go to the global trade station and trade for a female piloswine or one of it's evolve forms.
b;go to the day care with a female piloswine or one of its evolve forms and a Pokemon of the same egg type that is a male.
AwSoMe
Piloswine evolves into Mamoswine when it levels up when it knows ANCIENT POWER. ANCIENT POWER is an egg move, so you probably need to do some breeding in order to have a Mamoswine.
Piloswine can't learn Ancientpower by level-up. you have 2 options, either let the move tutor in Platinum, Heart Gold or Soul Silver teach Piloswine the move and then use Pokétransfer to transfer the pokémon to Black and White. Or you could Chain breed the move onto a Swinub by breeding a Male Kecleon or Dunsparce that knows Ancientpower with a Female Swinub, Piloswine or Mamoswine. The egg that is produced will be a Swinub that knows Ancientpower. Either way I am sorry but if you have a Piloswine on Pokemon White that doesn't know Ancientpower it can never evolve in that game :( sorry.
If you're asking if you can get an egg for Latios or Latias without breeding them, then the answer is no; you cannot get an Egg for either of them without hacking the game.
No, you will not get a Pokémon Egg while breeding Articuno and Ditto. Articuno cannot breed due to its Legendary status.
In the event of you are breeding Pokémon then the Pokémon that will be in the Pokémon Egg that you will receive will be the lowest form of the Pokémon that is breeding with Ditto or the lowest form of the female parent in the event that it is breeding with the male parent however in the event of breeding a Pikachu with a Ditto or a female Pikachu with a male Pokémon then the resulting Pokémon Egg will hatch into a Pichu, a female Togetic breeding with a male parent will result into you receiving a Togepi Egg and a female Magmar breeding with a male parent will result into a Magby Egg however a female Marill breeding with a male parent or Ditto will result into a Marill Egg unless it is holding an incense item that is called the Sea Incense at which point it will result into a Pokémon Egg that will hatch into Azurill.
Piloswine evolves into Mamoswine when it levels up when it knows ANCIENT POWER. ANCIENT POWER is an egg move, so you probably need to do some breeding in order to have a Mamoswine.
you must breed a swinub or a piloswine because to learn ancient power it is a breeding move. once swinub evolves to piloswine you can go to a move tutor and give him a heart scale to have him teach your piloswine ancient power. when you have not raised your swinub/piloswone from an egg ancient power will not be an option however if it was an egg at one time ancient power will be an option. this is kind of an annoying process i know but mamoswine is super powerful for an ice type and totally worth it. and then you can trade it with other versions you have as long as its the right generation.
Piloswine can't learn Ancientpower by level-up. you have 2 options, either let the move tutor in Platinum, Heart Gold or Soul Silver teach Piloswine the move and then use Pokétransfer to transfer the pokémon to Black and White. Or you could Chain breed the move onto a Swinub by breeding a Male Kecleon or Dunsparce that knows Ancientpower with a Female Swinub, Piloswine or Mamoswine. The egg that is produced will be a Swinub that knows Ancientpower. Either way I am sorry but if you have a Piloswine on Pokemon White that doesn't know Ancientpower it can never evolve in that game :( sorry.
you could NOT get a zorua egg without breeding at the day care center
Piloswine can't learn Ancientpower by level-up. you have 2 options, either let the move tutor in Platinum, Heart Gold or Soul Silver teach Piloswine the move and then use Pokétransfer to transfer the pokémon to Black and White. Or you could Chain breed the move onto a Swinub by breeding a Male Kecleon or Dunsparce that knows Ancientpower with a Female Swinub, Piloswine or Mamoswine. The egg that is produced will be a Swinub that knows Ancientpower. Either way I am sorry but if you have a Piloswine on Pokemon White that doesn't know Ancientpower it can never evolve in that game :( sorry.
If you're asking if you can get an egg for Latios or Latias without breeding them, then the answer is no; you cannot get an Egg for either of them without hacking the game.
Luxray can only learn Ice Fang from breeding. To get a Luxray that knows Ice Fang you need to breed a female Shinx with a male Piloswine that knows Ice Fang. The resulting egg will be a Shinx that knows Ice Fang upon hatching.
No, you will not get a Pokémon Egg while breeding Articuno and Ditto. Articuno cannot breed due to its Legendary status.
you have to have the fairy egg for sure. the combo is LOW LIGHT MEDIUM TEMP
In the event of you are breeding Pokémon then the Pokémon that will be in the Pokémon Egg that you will receive will be the lowest form of the Pokémon that is breeding with Ditto or the lowest form of the female parent in the event that it is breeding with the male parent however in the event of breeding a Pikachu with a Ditto or a female Pikachu with a male Pokémon then the resulting Pokémon Egg will hatch into a Pichu, a female Togetic breeding with a male parent will result into you receiving a Togepi Egg and a female Magmar breeding with a male parent will result into a Magby Egg however a female Marill breeding with a male parent or Ditto will result into a Marill Egg unless it is holding an incense item that is called the Sea Incense at which point it will result into a Pokémon Egg that will hatch into Azurill.
Evolve into Piloswine, then go to Blackthorn City and look for a house that has four people in it. Talk to the guy in pink clothing and give him a Heart Scale. Then select Ancientpower from the list when selecting Piloswine
By breeding Arcanine and Houndour.