Righteous Blow

Righteous Blow deals 2 damage to target attacking or blocking creature.

Knight of the White Orchid

First strike
When this creature enters, if an opponent controls more lands than you, you may search your library for a Plains card, put it onto the battlefield, then shuffle.

Windbrisk Heights

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)
This land enters tapped.
{T}: Add {W}.
{W}, {T}: You may play the exiled card without paying its mana cost if you attacked with three or more creatures this turn.

Swords to Plowshares

Exile target creature. Its controller gains life equal to its power.

Guardians' Pledge

White creatures you control get +2/+2 until end of turn.

Youthful Knight

Knight's Pledge

Enchant creature
Enchanted creature gets +2/+2.

Plains

Unbreakable Formation

Creatures you control gain indestructible until end of turn.
Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.

Garrison Griffin

Flying
Whenever this creature attacks, target Knight you control gains flying until end of turn.

Venerable Knight

When this creature dies, put a +1/+1 counter on target Knight you control.

Daring Skyjek

Battalion — Whenever this creature and at least two other creatures attack, this creature gains flying until end of turn.

Lionheart Maverick

Vigilance
{4}{W}: This creature gets +1/+2 until end of turn.

Cavalry Drillmaster

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

War Falcon

Flying
This creature can't attack unless you control a Knight or a Soldier.

Dizzying Swoop

Tap up to two target creatures. (Then exile this card. You may cast the creature later from exile.)

Ardenvale Tactician

Ardenvale Tactician // Dizzying Swoop

Acclaimed Contender

When this creature enters, if you control another Knight, look at the top five cards of your library. You may reveal a Knight, Aura, Equipment, or legendary artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.