Leonin Vanguard

At the beginning of combat on your turn, if you control three or more creatures, this creature gets +1/+1 until end of turn and you gain 1 life.

Luminous Bonds

Enchant creature
Enchanted creature can't attack or block.

Plains

Cavalry Drillmaster

When Cavalry Drillmaster enters, target creature gets +2/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Oreskos Swiftclaw

Rustwing Falcon

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Daybreak Chaplain

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

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.

Evra, Halcyon Witness

Lifelink
{4}: Exchange your life total with Evra, Halcyon Witness's power.

Mighty Leap

Target creature gets +2/+2 and gains flying until end of turn.

Ajani's Welcome

Whenever a creature you control enters, you gain 1 life.

Ajani's Sunstriker

Ajani, Adversary of Tyrants

+1: Put a +1/+1 counter on each of up to two target creatures.
−2: Return target creature card with mana value 2 or less from your graveyard to the battlefield.
−7: You get an emblem with "At the beginning of your end step, create three 1/1 white Cat creature tokens with lifelink."

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.