Kicker (You may pay an additional as you cast this spell.)
If this creature was kicked, it enters with two +1/+1 counters on it and with first strike.

When this creature enters, tap target creature an opponent controls. Put a stun counter on that creature if you control another Knight. (If a permanent with a stun counter would become untapped, remove one from it instead.)

: Add .
, Pay 1 life: Add .
, , Sacrifice a Desert: Target creature gets +3/+3 until end of turn. Activate only as a sorcery.

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

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Target creature and all other creatures with the same name as that creature get -3/-3 until end of turn.

: Target player draws two cards, then discards two cards.

Whenever you draw a card, this creature gets +2/+2 until end of turn.

This land enters tapped.
: Add or .
: Until end of turn, this land becomes a 2/1 red and white Elemental creature with double strike. It's still a land.

When this creature dies, draw a card.

Destroy target creature.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Reach, lifelink
Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)
Each other creature you control without a +1/+1 counter on it has outlast .

Level up (: Put a level counter on this. Level up only as a sorcery.)
LEVEL 1-2
2/2
This creature can't be blocked.
LEVEL 3+
3/3
Shroud (This creature can't be the target of spells or abilities.)
This creature can't be blocked.

When this creature enters, scry 2.
Whenever this creature crews a Vehicle, that Vehicle gets +1/+1 until end of turn.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
You may have this creature enter as a copy of any creature on the battlefield, except it's a Synth artifact creature in addition to its other types.

Choose target creature. Mill three cards, then put a +1/+1 counter on that creature for each creature card in your graveyard. (To mill three cards, put the top three cards of your library into your graveyard.)

(: Add .)

When this Vehicle enters, create a 1/1 colorless Thopter artifact creature token with flying.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

, : Prevent the next 1 damage that would be dealt to any target this turn.
, : Target creature gains flying until end of turn.

: Exile target instant or sorcery card from a graveyard. Roll a d20. Activate only as a sorcery.
1—9 | Copy that card. You may cast the copy.
10—19 | Copy that card. You may cast the copy by paying rather than paying its mana cost.
20 | Copy each card exiled with this artifact. You may cast any number of the copies without paying their mana costs.