Mountain

Venerable Knight

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

Temple of Triumph

Temple of Triumph enters tapped.
When Temple of Triumph enters, scry 1.
{T}: Add {R} or {W}.

Inspiring Veteran

Benalish Marshal

Wrenn's Resolve

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Boros Guildgate

Boros Guildgate enters tapped.
{T}: Add {R} or {W}.

Plains

Skyknight Legionnaire

Daring Skyjek

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

Acclaimed Contender

When Acclaimed Contender 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.

Worthy Knight

Whenever you cast a Knight spell, create a 1/1 white Human creature token.

Chained to the Rocks

Enchant Mountain you control
When Chained to the Rocks enters, exile target creature an opponent controls until Chained to the Rocks leaves the battlefield. (That creature returns under its owner's control.)

Fervent Champion

First strike, haste
Whenever Fervent Champion attacks, another target attacking Knight you control gets +1/+0 until end of turn.
Equip abilities you activate that target Fervent Champion cost {3} less to activate.