Game Guide
Uno:

Uno

Common Pet Fire Cat

A one-eyed kitty cat. It's not missing an eye, though. So don't ask how it lost it.

Skills

Inferno Gaze

Deals 360% fire damage based on character's speed to target. On critical hit, gain a random positive status effect. Has a base critical strike chance of 25%.

Pounce

Triggered/Cannot be used - When this pet gains a positive status effect, 25% + 7.5% per mastery level chance to pounce at a random target dealing fire damage based on character's speed. This can trigger up to 1 time per turn. After that, each additional activation has a 25% reduced chance to occur, minimum 5%. Has 50% reduced chance to trigger with summoned characters.

Attributes

Each pet level grants the following attributes:

Strength 1
Intelligence 3
Speed 6
Vitality 2

Uno Evolutions

Uno can evolve into the following pets:

Dos Dos Evolved Fire Brand of Dos

Note: Evolving Uno requires it to be level 250, both skills to be mastery level 10, applying the evolved pet's brand and then applying an Orb of Evolution to that pet.