Siege Veteran

At the beginning of combat on your turn, put a +1/+1 counter on target creature you control.
Whenever another nontoken Soldier you control dies, create a 1/1 colorless Soldier artifact creature token.

Extraction Specialist

Lifelink
When Extraction Specialist enters, return target creature card with mana value 2 or less from your graveyard to the battlefield. That creature can't attack or block for as long as you control Extraction Specialist.

Raptor Companion

Sanctum of Tranquil Light

{5}{W}: Tap target creature. This ability costs {1} less to activate for each Shrine you control.

Nebelgast Beguiler

Backup Agent

When Backup Agent enters, put a +1/+1 counter on target creature.

Samite Herbalist

Whenever Samite Herbalist becomes tapped, you gain 1 life and scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Recruitment Officer

{3}{W}: Look at the top four cards of your library. You may reveal a creature card with mana value 3 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Boon-Bringer Valkyrie

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following abilities until end of turn.)
Flying, first strike, lifelink

Snubhorn Sentry

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
Snubhorn Sentry gets +3/+0 as long as you have the city's blessing.

Majestic Heliopterus

Flying
Whenever Majestic Heliopterus attacks, another target Dinosaur you control gains flying until end of turn.

Seven-Tail Mentor

When Seven-Tail Mentor enters or dies, put a +1/+1 counter on target creature or Vehicle you control.

Cooped Up

Enchant creature
Enchanted creature can't attack or block.
{2}{W}: Exile enchanted creature.

Huatli's Snubhorn

Vigilance (Attacking doesn't cause this creature to tap.)

Kwende, Pride of Femeref

Double strike
Creatures you control with first strike have double strike.

Shining Aerosaur

Inspiring Overseer

Flying
When Inspiring Overseer enters, you gain 1 life and draw a card.

When We Were Young

Up to two target creatures each get +2/+2 until end of turn. If you control an artifact and an enchantment, those creatures also gain lifelink until end of turn.

Territorial Hammerskull

Whenever Territorial Hammerskull attacks, tap target creature an opponent controls.

Sun-Crested Pterodon

Flying
Sun-Crested Pterodon has vigilance as long as you control another Dinosaur.

Steadfast Armasaur

Vigilance
{1}{W}, {T}: Steadfast Armasaur deals damage equal to its toughness to target creature blocking or blocked by it.

Kill Shot

Bellowing Aegisaur

Enrage — Whenever Bellowing Aegisaur is dealt damage, put a +1/+1 counter on each other creature you control.

Welcoming Vampire

Flying
Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn.

Imperial Aerosaur

Flying
When Imperial Aerosaur enters, another target creature you control gets +1/+1 and gains flying until end of turn.

Shadowfax, Lord of Horses

Horses you control have haste. (They can attack and {T} as soon as they come under your control.)
Whenever Shadowfax, Lord of Horses attacks, you may put a creature card with lesser power from your hand onto the battlefield tapped and attacking.