Mesa Unicorn

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Serra Angel

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

Call the Cavalry

Create two 2/2 white Knight creature tokens with vigilance.

Dwarven Priest

When Dwarven Priest enters, you gain 1 life for each creature you control.

Everdawn Champion

Prevent all combat damage that would be dealt to Everdawn Champion.

Mentor of the Meek

Whenever another creature you control with power 2 or less enters, you may pay {1}. If you do, draw a card.

Benalish Marshal

Knightly Valor

Enchant creature
When Knightly Valor enters, create a 2/2 white Knight creature token with vigilance. (Attacking doesn't cause it to tap.)
Enchanted creature gets +2/+2 and has vigilance.

Aerial Responder

Bright Reprisal

Destroy target attacking creature.
Draw a card.

Militia Bugler

Vigilance (Attacking doesn't cause this creature to tap.)
When Militia Bugler enters, look at the top four cards of your library. You may reveal a creature card with power 2 or less from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Always Watching

Nontoken creatures you control get +1/+1 and have vigilance.

Gallant Cavalry

Vigilance (Attacking doesn't cause this creature to tap.)
When Gallant Cavalry enters, create a 2/2 white Knight creature token with vigilance.

Cleansing Nova

Choose one —
• Destroy all creatures.
• Destroy all artifacts and enchantments.

Valiant Knight

Other Knights you control get +1/+1.
{3}{W}{W}: Knights you control gain double strike until end of turn.

Pegasus Courser

Flying
Whenever Pegasus Courser attacks, another target attacking creature gains flying until end of turn.

Hieromancer's Cage

When Hieromancer's Cage enters, exile target nonland permanent an opponent controls until Hieromancer's Cage leaves the battlefield.

Plains

Subjugator Angel

Flying
When Subjugator Angel enters, tap all creatures your opponents control.

Luminous Bonds

Enchant creature
Enchanted creature can't attack or block.

Militant Angel

Flying, lifelink
When Militant Angel enters, create a number of 2/2 white Knight creature tokens with vigilance equal to the number of opponents you attacked this turn.

Fan Bearer

Inspiring Captain

When Inspiring Captain enters, creatures you control get +1/+1 until end of turn.