Enlist (As this creature attacks, you may tap a nonattacking creature you control without summoning sickness. When you do, add its power to this creature's until end of turn.)

When Argivian Cavalier enters the battlefield, create a 1/1 white Soldier creature token.

: Creatures you control get +1/+0 and gain haste until end of turn.

When Cavalier of Flame enters the battlefield, discard any number of cards, then draw that many cards.

When Cavalier of Flame dies, it deals X damage to each opponent and each planeswalker they control, where X is the number of land cards in your graveyard.

Lifelink

When Cavalier of Night enters the battlefield, you may sacrifice another creature. When you do, destroy target creature an opponent controls.

When Cavalier of Night dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.

Vigilance

When Conclave Cavalier dies, create two 2/2 green and white Elf Knight creature tokens with vigilance.

Vigilance

Whenever East-Mark Cavalier deals damage to a Goblin or Orc, destroy that creature.

Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

Whenever Gustcloak Cavalier attacks, you may tap target creature.

Whenever Gustcloak Cavalier becomes blocked, you may untap Gustcloak Cavalier and remove it from combat.

Flying

When Mesa Cavalier enters the battlefield, you gain 2 life.

Protection from white and from black

: Stillmoon Cavalier gains flying until end of turn.

: Stillmoon Cavalier gains first strike until end of turn.

: Stillmoon Cavalier gets +1/+0 until end of turn.

Swordsworn Cavalier has first strike as long as another Knight entered the battlefield under your control this turn.

Vigilance