With the Dragonflight pre-patch, avid collectors can work towards new collection achievements, earning rewards for large collections of mounts, pets, and toys including the Otterworldly Ottuk Carrier.
Mount Achievement
Collecting 500 mounts awards Thanks for the Carry! and Otterworldly Ottuk Carrier, an armored Otter mount with Soulshape-looking effects.
Battle Pet Achievements
There are four new battle pet collection achievements:
Many More Mini Minions : Collect 1250 unique pets.