When Acclaimed Contender enters the battlefield, 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.

Vigilance, protection from multicolored When Basri's Lieutenant enters the battlefield, put a +1/+1 counter on target creature you control. Whenever Basri's Lieutenant or another creature you control dies, if it had a +1/+1 counter on it, create a 2/2 white Knight creature token with vigilance.

Flash When Blacklance Paragon enters the battlefield, target Knight gains deathtouch and lifelink until end of turn.

Whenever another creature enters the battlefield under your control, each opponent loses 1 life.

Oathsworn Knight enters the battlefield with four +1/+1 counters on it. Oathsworn Knight attacks each combat if able. If damage would be dealt to Oathsworn Knight while it has a +1/+1 counter on it, prevent that damage and remove a +1/+1 counter from it.

Menace At the beginning of your upkeep, each player draws a card and loses 1 life.

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

Whenever a Knight you control attacks, each opponent loses 1 life and you gain 1 life. {6}{W}{B}, Sacrifice Knights' Charge: Return all Knight creature cards from your graveyard to the battlefield.

When Sparring Regimen enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.) Whenever you attack, put a +1/+1 counter on target attacking creature and untap it.

({T}: Add {W}.)

({T}: Add {B}.)

{T}: Add {C}. {T}: Add {R}, {W}, or {B}. Spend this mana only to cast a Knight or Equipment spell.