Bulette

At the beginning of your end step, if a creature died this turn, put a +1/+1 counter on this creature.

Thunderfoot Baloth

Trample
Lieutenant — As long as you control your commander, this creature gets +2/+2 and other creatures you control get +2/+2 and have trample.

Baloth Pup

This creature has trample as long as it has a +1/+1 counter on it.

Spellbreaker Behemoth

This spell can't be countered.
Creature spells you control with power 5 or greater can't be countered.

Battering Krasis

Trample
Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Frenzied Baloth

This spell can't be countered.
Trample, haste
Creature spells you control can't be countered.
Combat damage can't be prevented.

Beastie Beatdown

Choose target creature you control and target creature an opponent controls.
Delirium — If there are four or more card types among cards in your graveyard, put two +1/+1 counters on the creature you control.
The creature you control deals damage equal to its power to the creature an opponent controls.

Herald of Ilharg

Trample
Whenever you cast a creature spell, put two +1/+1 counters on this creature. If that spell has mana value 5 or greater, this creature deals damage equal to the number of counters on it to each opponent.

Krosan Warchief

Beast spells you cast cost {1} less to cast.
{1}{G}: Regenerate target Beast.

Herd Baloth

Whenever one or more +1/+1 counters are put on this creature, you may create a 4/4 green Beast creature token.

Slinza, the Spiked Stampede

Beast spells you cast cost {2} less to cast.
Each other Beast creature you control enters with an additional +1/+1 counter on it.
Whenever Slinza or another creature with power 4 or greater enters, you may pay {1}{R/G}. When you do, Slinza fights target creature you don't control.

Shaleskin Bruiser

Trample
Whenever this creature attacks, it gets +3/+0 until end of turn for each other attacking Beast.

Contested Cliffs

{T}: Add {C}.
{R}{G}, {T}: Target Beast creature you control fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Quartzwood Crasher

Trample
Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player.

Fangren Firstborn

Whenever this creature attacks, put a +1/+1 counter on each attacking creature.

Totem Speaker

Whenever a Beast enters, you may gain 3 life.

Rampaging Baloths

Trample
Landfall — Whenever a land you control enters, create a 4/4 green Beast creature token.

Kona, Rescue Beastie

Survival — At the beginning of your second main phase, if Kona is tapped, you may put a permanent card from your hand onto the battlefield.

Formation Breaker

Creatures with power less than this creature's power can't block it.
As long as you control a creature with a counter on it, this creature gets +1/+2.

Woodland Liege

Whenever a Beast you control enters, draw a card.

Canopy Crawler

Amplify 1 (As this creature enters, put a +1/+1 counter on it for each Beast card you reveal in your hand.)
{T}: Target creature gets +1/+1 until end of turn for each +1/+1 counter on this creature.

Elder Gargaroth

Vigilance, reach, trample
Whenever this creature attacks or blocks, choose one —
• Create a 3/3 green Beast creature token.
• You gain 3 life.
• Draw a card.

Wirewood Savage

Whenever a Beast enters, you may draw a card.

Anara, Wolvid Familiar

During your turn, commanders you control have indestructible. (Effects that say "destroy" don't destroy them. A creature with indestructible can't be destroyed by damage.)
Partner (You can have two commanders if both have partner.)