When this creature enters, tap all nonwhite creatures.
Suspend 5 —

Protection from red
Creatures named Ivory Guardians get +1/+1 as long as an opponent controls a nontoken red permanent.

You have shroud.

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.
Your opponents can't cast spells with the same name as the exiled card.

Cast this spell only after combat.
Gain control of target nonartifact, nonblack creature that attacked you this turn and put a -1/-0 counter on it.

Flying
Whenever this creature or another creature you control with flying dies, return another target creature card with lesser mana value from your graveyard to the battlefield.

Whenever another artifact you control enters, put a +1/+1 counter on Jackknight. If that artifact is a Contraption, Jackknight gains lifelink until end of turn.

Return target permanent card in an opponent's graveyard to the battlefield under their control. When that permanent enters, return up to one target permanent card with equal or lesser mana value from your graveyard to the battlefield.

, : Target creature can't block this turn.

Whenever Jareth blocks, it gets +7/+7 until end of turn.
: Jareth gains protection from the color of your choice until end of turn.

, : Reveal any number of white cards in your hand. You gain 2 life for each card revealed this way.

Double strike
Toxic 1

First strike
: Attacking creatures you control get +X/+X until end of turn, where X is the number of attacking creatures.

Vigilance
When this creature enters, you gain 4 life.

Your opponents can't cast spells during your turn.
: Transform Jennifer Walters. Activate only as a sorcery.

When Jennika enters, create a 2/2 red Mutant creature token.
Plainscycling

When this creature enters, put a +1/+1 counter on target creature.

When you cast this spell, create a 1/1 white Athlete creature token.
Rebound

Flash
Defender
When this creature enters, you may return another target creature you control to its owner's hand.

Whenever Jet attacks, look at the top five cards of your library. You may put a creature card with mana value 3 or less from among them onto the battlefield tapped and attacking. Put the rest on the bottom of your library in a random order.

Flying
Sacrifice two lands: This creature gains protection from artifacts or from the color of your choice until end of turn.

As Jihad enters, choose a color and an opponent.
White creatures get +2/+1 as long as the chosen player controls a nontoken permanent of the chosen color.
When the chosen player controls no nontoken permanents of the chosen color, sacrifice Jihad.

Each historic card in your hand has cycling .
Whenever you cycle a card, put a +1/+1 counter on Jo Grant.
Doctor's companion (You can have two commanders if the other is the Doctor.)

Untap up to two target creatures. They each get +2/+2 until end of turn.

Create two 1/1 white Soldier Ally creature tokens.

First strike
At the beginning of each end step, if an opponent has more cards in hand than you, this creature becomes prepared.