Zodiac Horse

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Zodiac Ox

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Beastmaster Ascension

Whenever a creature you control attacks, you may put a quest counter on Beastmaster Ascension.
As long as Beastmaster Ascension has seven or more quest counters on it, creatures you control get +5/+5.

Hardy of Myra's Marvels

As Hardy of Myra's Marvels enters, choose a number.
Whenever you cast a spell with the chosen number of lines of flavor text, put that many +1/+1 counters on target creature.
Partner (You can have two commanders if both have partner.)

Zodiac Dragon

When Zodiac Dragon is put into your graveyard from the battlefield, you may return it to your hand.

Zodiac Dog

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Zodiac Rat

Zodiac Snake

Zodiac Tiger

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Zodiac Pig

Vial Smasher the Fierce

Whenever you cast your first spell each turn, choose an opponent at random. Vial Smasher the Fierce deals damage equal to that spell's mana value to that player or a planeswalker that player controls.
Partner (You can have two commanders if both have partner.)

Zodiac Rabbit

Zodiac Monkey

Zodiac Rooster

Plainswalk (This creature can't be blocked as long as defending player controls a Plains.)