Elver Pet Feat 1
Source Pathfinder Howl of the Wild
Athamarus have bonded with eels more closely than any other fish. You have formed a strong connection with a young eel that serves as your pet. Typically, these eels are tended until they grow large enough to serve as a mount. You gain the Pet general feat. Instead of the normal choice of pet abilities, your eel has aquatic, Fast Movement, and the Damage Avoidance familiar ability for Reflex saves. The aquatic ability means it gains the aquatic trait, breathes water instead of air, and has a swim Speed instead of a land Speed.
When you aren't in an aquatic environment, you can easily carry your pet eel around in a small water-filled globe that has light Bulk.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
AthamaruAthamarus are fishlike aquatic humanoids.