At the beginning of your upkeep, if you have seven or more cards in hand, you gain 4 life.

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

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.

: Add or .

, , Sacrifice Izzet Locket: Draw two cards.

, : Target creature gains flanking until end of turn. <I>(Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)</I>

: Roll a six-sided die. This ability has the indicated effect.

1 — Sacrifice Jack-in-the-Mox and you lose 5 life.

2 — Add .

3 — Add .

4 — Add .

5 — Add .

6 — Add .

, , Sacrifice Jack-o'-Lantern: Exile up to one target card from a graveyard. Draw a card.

, Exile Jack-o'-Lantern from your graveyard: Add one mana of any color.

: The next time a source of your choice would deal damage to target creature this turn, that source deals that damage to you instead.

When Jade Seedstones enters the battlefield, distribute three +1/+1 counters among one, two, or three target creatures you control.

Craft with creature (, Exile this artifact, Exile a creature you control or a creature card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

When Jadeheart Attendant enters the battlefield, you gain life equal to the mana value of the exiled card used to craft it.

Whenever you crank Jamming Device, creatures target player controls get -1/-1 until end of turn.

, : Untap target creature.

Whenever a creature you control dies, put two eyeball counters on Jar of Eyeballs.

, , Remove all eyeball counters from Jar of Eyeballs: Look at the top X cards of your library, where X is the number of eyeball counters removed this way. Put one of them into your hand and the rest on the bottom of your library in any order.

: Target red creature gains haste until end of turn.

: Add , , or .

, , Sacrifice Jeskai Banner: Draw a card.

Jester's Mask enters the battlefield tapped.

, , Sacrifice Jester's Mask: Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. That player puts those cards into their hand, then shuffles.

, , Sacrifice Jester's Sombrero: Look at target player's sideboard, choose three cards from it, and remove those cards from the match.

Living metal (As long as it's your turn, this Vehicle is also a creature.)

Flying

: Convert Jetfire, then adapt 3. (If it has no +1/+1 counters on it, put three +1/+1 counters on it.)

, : Put a charge counter on Jeweled Amulet. Note the type of mana spent to pay this activation cost. Activate only if there are no charge counters on Jeweled Amulet.

, Remove a charge counter from Jeweled Amulet: Add one mana of Jeweled Amulet's last noted type.

, Sacrifice Jeweled Lotus: Add three mana of any one color. Spend this mana only to cast your commander.

Flying

Historic spells you cast cost less to cast. (Artifacts, legendaries, and Sagas are historic.)

: Regenerate target artifact creature.

At the beginning of your upkeep, Jinxed Idol deals 2 damage to you.

Sacrifice a creature: Target opponent gains control of Jinxed Idol.

Domain — , : Draw a card. This ability costs less to activate for each basic land type among lands you control.

: Jousting Dummy gets +1/+0 until end of turn.

, : Target creature can't be blocked this turn except by Walls.

Trample

Whenever Juggletron attacks, you may put an art sticker on it.

Juggletron gets +3/+0 for each item in its art that's not touching Juggletron, another item, or the card frame.

Flying

When Junk Diver dies, return another target artifact card from your graveyard to your hand.

When Junk Jet enters the battlefield, create a Junk token. (It's an artifact with ", Sacrifice this artifact: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")

, Sacrifice another artifact: Double equipped creature's power until end of turn.

Equip

At the beginning of your upkeep, you may have target creature you control get +X/+X until end of turn, where X is the number of creatures you control. If you do, sacrifice that creature at the beginning of the next end step.

Negative — As long as K-9, Mark I is untapped, other legendary creatures you control have ward .

Affirmative — , : Target legendary creature can't be blocked this turn.

Doctor's companion (You can have two commanders if the other is the Doctor.)

: You may play target snow permanent card from your graveyard this turn. If you do, it enters the battlefield tapped.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Ward

Whenever Kappa Cannoneer or another artifact enters the battlefield under your control, put a +1/+1 counter on Kappa Cannoneer and it can't be blocked this turn.

Whenever Karn, Silver Golem blocks or becomes blocked, it gets -4/+4 until end of turn.

: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.

When Kaslem's Stonetree enters the battlefield, look at the top six cards of your library. You may put a land card from among them onto the battlefield tapped. Put the rest on the bottom in a random order.

Craft with Cave (, Exile this artifact, Exile a Cave you control or a Cave card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)

, : Look at the top card of your library, then exile it face down. (You may look at it any time.)

: Until end of turn, you may play cards you own exiled with Kayla's Music Box.

You may look at face-down creatures you don't control any time.

Trample

Keldon Battlewagon can't block.

When Keldon Battlewagon attacks, sacrifice it at end of combat.

Tap an untapped creature you control: Keldon Battlewagon gets +X/+0 until end of turn, where X is the power of the creature tapped this way.

: Add , , or .

Cycling (, Discard this card: Draw a card.)

, Discard a card: Up to one target creature can't be blocked this turn.

Whenever Key to the City becomes untapped, you may pay . If you do, draw a card.

Visit — Creatures you control get +1/+0 until end of turn.

Lights — 2, 3, 6

Visit — Creatures you control get +1/+0 until end of turn.

Lights — 2, 5, 6

Visit — Creatures you control get +1/+0 until end of turn.

Lights — 3, 5, 6

, : Tap all other artifacts. They don't untap during their controllers' untap steps for as long as Kill Switch remains tapped.

Whenever Kiln Walker attacks, it gets +3/+0 until end of turn.

, , Sacrifice Kindslaver: A person outside the game controls target player during that player's next turn. Neither player may advise that person until the end of that turn.

Equipped creature gets +1/+0 and has flying.

Equip (: Attach to target creature you control. Equip only as a sorcery.)

First strike, protection from black borders (Nothing with a black border can block, target, deal damage to, or attach to this creature.)

First strike, protection from loose lips (Nothing with an open mouth in its artwork can block, target, deal damage to, or attach to this creature.)

First strike, protection from two-word names (Nothing with exactly two words in its name can block, target, deal damage to, or attach to this creature. Hyphenated words are one word.)