(You may cast a legendary instant only if you control a legendary creature or planeswalker.)

Destroy target creature. If its controller has more than four cards in hand, they exile cards from their hand equal to the difference.

Isolated Chapel enters tapped unless you control a Plains or a Swamp.

: Add or .

Put target creature into its owner's library second from the top.

When Isolation Zone enters, exile target creature or enchantment an opponent controls until Isolation Zone leaves the battlefield. (That permanent returns under its owner's control.)

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their choice.)

Whenever an opponent sacrifices a nontoken permanent, put that card onto the battlefield under your control.

Colorless spells you cast with mana value 7 or greater cost less to cast.

Other colorless creatures you control get +1/+1.

Haste

When Itzquinth, Firstborn of Gishath enters, you may pay . When you do, target Dinosaur you control deals damage equal to its power to another target creature.

If you would get one or more (energy counters), you get that many plus one instead.

: Draw a card. Activate only if you've paid or lost four or more this turn.

Flash (You may cast this spell any time you could cast an instant.)

Haste

: Izzet Staticaster deals 1 damage to target creature and each other creature with the same name as that creature.

+1: Up to one target creature gets -2/-0 until your next turn.

−3: You may cast target instant or sorcery card from your graveyard this turn. If that spell would be put into your graveyard, exile it instead.

−9: You get an emblem with "Whenever you cast a spell, target opponent mills five cards."

: Jade Statue becomes a 3/6 Golem artifact creature until end of combat. Activate only during combat.

Whenever Jangling Automaton attacks, untap all creatures defending player controls.

If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead.

−2: Jaya, Venerated Firemage deals 2 damage to any target.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Jeering Instigator is turned face up, if it's your turn, gain control of another target creature until end of turn. Untap that creature. It gains haste until end of turn.

Jeskai Infiltrator can't be blocked as long as you control no other creatures.

When Jeskai Infiltrator deals combat damage to a player, exile it and the top card of your library in a face-down pile, shuffle that pile, then manifest those cards. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Jhessian Infiltrator can't be blocked.

Whenever you cast a historic spell, draw a card. (Artifacts, legendaries, and Sagas are historic.)

At the beginning of your end step, target opponent gains control of up to one target creature you control. Put two +1/+1 counters on it and tap it. It's goaded for the rest of the game and it gains "This creature can't be sacrificed." (It attacks each combat if able and attacks a player other than you if able.)

Whenever a creature you own but don't control attacks, you draw a card.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Jukai Liberator deals combat damage to a player, choose land or nonland. Seek a permanent card of the chosen kind.

, : Target player loses 1 life.

, : Create a 1/1 green Saproling creature token.

As long as Juniper Order Advocate is untapped, green creatures you control get +1/+1.

Kabira Plateau enters tapped.

: Add .

Whenever a creature you control deals combat damage to a player, put a loyalty counter on Kaito.

+1: Up to one target creature you control can't be blocked this turn. Draw a card, then discard a card.

−2: Create a 2/1 blue Ninja creature token.

−9: You get an emblem with "Whenever a player casts a spell, you create a 2/1 blue Ninja creature token."

Living weapon

Indestructible

Equipped creature gets +5/+5 and has first strike, trample, indestructible, haste, and "Whenever this creature deals combat damage to a creature, exile that creature."

Equip

Whenever a modified creature you control attacks, exile the top card of your library. You may play that card this turn. (Equipment, Auras you control, and counters are modifications.)

Whenever you cast a spell from exile, put a +1/+1 counter on target creature you control.

When Kami of Transmutation enters or leaves the battlefield, choose one —

• Each permanent card in your hand perpetually becomes an artifact in addition to its other types.

• Each permanent card in your hand perpetually becomes an enchantment in addition to its other types.

Cowards can't block Warriors.

: Choose one that hasn't been chosen this turn —

• Kargan Intimidator gets +1/+1 until end of turn.

• Target creature becomes a Coward until end of turn.

• Target Warrior gains trample until end of turn.

+4: Target player exiles a card from their hand.

−3: Exile target permanent.

−14: Restart the game, leaving in exile all non-Aura permanent cards exiled with Karn Liberated. Then put those cards onto the battlefield under your control.

Protection from blue

Spells your opponents cast that target a creature or planeswalker you control cost more to cast.

−2: Create a 2/2 blue Wizard creature token. Draw a card, then discard a card.

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

Creatures with flying can't attack or block, and their activated abilities with in their costs can't be activated.

Whenever you put one or more time counters on a permanent you control, create a 1/1 white Soldier creature token.

Whenever Kate Stewart attacks, you may pay . If you do, attacking creatures get +X/+X until end of turn, where X is the number of time counters among permanents you control.

Flying

: Regenerate Kathari Remnant.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

When Kathril, Aspect Warper enters, put a flying counter on any creature you control if a creature card in your graveyard has flying. Repeat this process for first strike, double strike, deathtouch, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance. Then put a +1/+1 counter on Kathril for each counter put on a creature this way.

Flying, lifelink, protection from Vampires

Katilda, Dawnhart Martyr's power and toughness are each equal to the number of permanents you control that are Spirits and/or enchantments.

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Enchant creature

Enchanted creature has flying, lifelink, and protection from Vampires, and it gets +X/+X, where X is the number of permanents you control that are Spirits and/or enchantments.

If Katilda's Rising Dawn would be put into a graveyard from anywhere, exile it instead.

Trample

Whenever an opponent gains life, put that many +1/+1 counters on Kavu Predator.

When Kederekt Leviathan enters, return all other nonland permanents to their owners' hands.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Draw a card for each attacking creature.

Flying

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

You may pay rather than pay the mana cost for Samurai spells you cast, where X is that spell's mana value.

Whenever Kessig Naturalist attacks, add or . Until end of turn, you don't lose this mana as steps and phases end.

Daybound (If a player casts no spells during their own turn, it becomes night next turn.)

At the beginning of your end step, you may sacrifice another creature. If you do, reveal cards from the top of your library until you reveal a nonlegendary creature card with lesser mana value, put it onto the battlefield, then put the rest on the bottom of your library in a random order.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Kheru Spellsnatcher is turned face up, counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may cast that card without paying its mana cost for as long as it remains exiled.

For each player, choose friend or foe. Each friend discards all cards from their hand, then draws that many cards plus one. Khorvath's Fury deals damage to each foe equal to the number of cards in their hand.

Create an X/X black and green Spirit Warrior creature token, where X is the greatest toughness among creatures you control.

Destroy all creatures. They can't be regenerated.

Threshold — If seven or more cards are in your graveyard, instead destroy all creatures, then create two 1/1 white Spirit creature tokens with flying. Creatures destroyed this way can't be regenerated.

As long as you control a Giant, Kithkin Greatheart gets +1/+1 and has first strike.

Just a second (As long as this spell is on the stack, players can't move permanents.)

One at a time, throw ten cards you own from outside the game onto the playing area from a distance of at least three feet (about one meter). For each of those cards, Knife and Death deals 1 damage to each creature or planeswalker you don't control that card is touching. You gain life equal to the damage dealt this way.