Q about windwalking piggy

Adianca - Heavens Tear

hey so i have a skatefish as a air pet right now i was thinking of buying a windwalking piggy but im not sure the price of one i will look in the action later but im kinda busy right now so if u could tell me the price and hatch price it would be nice but anyways i would also like to know if the pet is oneof the best air tanks besides from cashstop thanx for the help