The Rare Egg

So, who wants an egg?  It's easy to get the Larvesta egg.  Go to Route 18, and walk until you find a house.  Go in. One of the people will give you an Egg that will eventually hatch into Larvesta.  To hatch eggs, just walk around with the Egg until it hatches.  Larvesta also evolves into Volcarona at Level 59, if you want one.