how to sell/retry wild Battle-pets (if a rare dies or if you find a rare and want to sell it)
1. que for a PvP-pet Battle
2. *pull* a wild Battle-pet
3. if the rare dies accept the invite to the PvP battle
you get out of combat and ported to the arena..
leave the arena and you will see that the Battle-pet wich you had fighted was still there... (if no other player killed it :P )
pull the wild one again and you will see.. there wa the SAME pets again.. also too the same qualities of the pets
4. PROFIT?!?
Edit:
how to sell:
get in a battle..
post it in the general channel that you font a rare creature and if anyone want to buy it reset the battle
may with another account in the trade channel