Kor Firewalker

Protection from red
Whenever a player casts a red spell, you may gain 1 life.

Ajani's Pridemate

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

Impassioned Orator

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

Plains

Mask of Law and Grace

Enchant creature
Enchanted creature has protection from black and from red.

Bond of Discipline

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.

Call to Glory

Untap all creatures you control. Samurai creatures you control get +1/+1 until end of turn.

Bathe in Light

Radiance — Choose a color. Target creature and each other creature that shares a color with it gain protection from the chosen color until end of turn.

Mass Calcify

Brigid, Hero of Kinsbaile

First strike
{T}: Brigid, Hero of Kinsbaile deals 2 damage to each attacking or blocking creature target player controls.

Aerial Responder

Soltari Priest

Protection from red
Shadow (This creature can block or be blocked by only creatures with shadow.)

Ajani's Sunstriker

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

Blinding Light

Absolute Law

Crovax, Ascendant Hero

Other white creatures get +1/+1.
Nonwhite creatures get -1/-1.
Pay 2 life: Return Crovax, Ascendant Hero to its owner's hand.