Aion 2.0 has added various kinds of pets, which can be purchased with Kinah or by doing quests. The color of pets is unchangeable.
5 kinds of pets for your choice:
Ornamental Pet. This kind of pets have no special abilities but only pretty looks.
Alarming Pet. The pet will alarm you once your opponent race was getting close to you.
Efficient Pet. Feed your pet and you can get a special gift from it.
Bag Pet. Daevas can enjoy a mobile storage besides one's own bag.
Compound Pet. The one owns two or more abilities mentioned above.