When Jadelight Ranger enters, it explores, then it explores again. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard. Then repeat this process.)

Discard a card: Return Jadzi, Oracle of Arcavios to its owner's hand.

Magecraft — Whenever you cast or copy an instant or sorcery spell, reveal the top card of your library. If it's a nonland card, you may cast it by paying rather than paying its mana cost. If it's a land card, put it onto the battlefield.

Jagged Lightning deals 3 damage to each of two target creatures.

Jagged-Scar Archers's power and toughness are each equal to the number of Elves you control.

: Jagged-Scar Archers deals damage equal to its power to target creature with flying.

: Add . Spend this mana only to activate abilities.

, , Discard the last card you drew this turn: Draw a card.

Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.

, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.

Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.

+1: Create a 3/3 Kavu creature token with trample that's all colors.

−3: Choose up to two target creatures. For each of them, put a number of +1/+1 counters on it equal to the number of colors it is.

−6: Return target multicolored card from your graveyard to your hand. If that card was all colors, draw a card and create two Treasure tokens.

Jared Carthalion can be your commander.

Double strike

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

, , Discard a card: Destroy target blue permanent.

, , Discard a card: Jaya Ballard, Task Mage deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

, , Discard a card: Jaya Ballard deals 6 damage to each creature and each player.

Jaya's Firenado deals 5 damage to target creature or planeswalker. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

First strike

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

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Whenever Jedit Ojanen of Efrava attacks or blocks, create a 2/2 green Cat Warrior creature token with forestwalk.

Vigilance

When Jedit's Dragoons enters, you gain 4 life.

Whenever you cast a multicolored spell, scry 1. If that spell was all colors, create a 4/4 white Angel creature token with flying and vigilance.

, : Add .

Whenever Jerren, Corrupted Bishop enters or another nontoken Human you control dies, you lose 1 life and create a 1/1 white Human creature token.

: Target Human you control gains lifelink until end of turn.

At the beginning of your end step, if you have exactly 13 life, you may pay . If you do, transform Jerren.

Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures.

Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever Jeskai Elder deals combat damage to a player, you may draw a card. If you do, discard a card.

Flying

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Living metal (During 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.)

2 — Trample

3 — : Monstrosity 3. (If this permanent isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)

3 — 2/7

4 — 6/5

Remove Jeweled Bird from your deck before playing if you're not playing for ante.

: Ante Jeweled Bird. If you do, put all other cards you own from the ante into your graveyard, then draw a card.

Flying

Sacrifice two lands: Jeweled Spirit gains protection from artifacts or from the color of your choice until end of turn.

Deathtouch

When Jewel-Eyed Cobra dies, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Each creature you control with a +1/+1 counter on it has ": Add one mana of any color."

−1: Put a +1/+1 counter on target creature.

If you would create one or more tokens, you may instead create that many 2/2 green Cat creature tokens with haste or that many 3/1 green Dog creature tokens with vigilance.

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

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

When Jirina Kudro enters, create a 1/1 white Human Soldier creature token for each time you've cast a commander from the command zone this game.

Other Humans you control get +2/+0.

Flying

You may pay rather than pay the mana cost for spells you cast.

: Until end of turn, Jodah's Avenger gets -1/-1 and gains your choice of double strike, protection from red, vigilance, or shadow. (A creature with shadow can block or be blocked by only creatures with shadow.)

Untap all creatures you control. They gain hexproof and indestructible until end of turn. (They can't be the targets of spells or abilities your opponents control. Damage and effects that say "destroy" don't destroy them.)

Target creature gets -5/-5 until end of turn.

Descend 4 — That creature gets -10/-10 until end of turn instead if there are four or more permanent cards in your graveyard.

Trample

Jokulmorder enters tapped.

When Jokulmorder enters, sacrifice it unless you sacrifice five lands.

Jokulmorder doesn't untap during your untap step.

Whenever you play an Island, you may untap Jokulmorder.

Whenever a player attacks one or more of your opponents, that attacking player creates a Treasure token.

If you would create one or more Treasure tokens, instead create those tokens plus an additional Treasure token.

Sacrifice five Treasures: Put five +1/+1 counters on Jolene.

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.

First strike

Metalcraft — Creatures you control get +3/+0 as long as you control three or more artifacts.

Whenever you cast your second spell each turn, draw a card.

Choose one —

• Search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.

• You may play up to two additional lands this turn.

Entwine (Choose both if you pay the entwine cost.)

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

Flying

Creatures you control with flying have "Spells your opponents cast that target this creature cost more to cast."

Choose target attacking or blocking creature. Scry 3, then reveal the top card of your library. Judge Unworthy deals damage equal to that card's mana value to that creature.

Whenever you cast an instant or sorcery spell, choose one —

• That spell gains deathtouch and lifelink.

• Create a 2/2 red Imp creature token with "When this creature dies, it deals 2 damage to each opponent."

Trample

No more than one creature can attack you each combat.

Suspend 6— (Rather than cast this card from your hand, you may pay and exile it with six time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.)

, : Target player loses 1 life.

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

As long as you control another multicolored permanent, Jund Hackblade gets +1/+1 and has haste.

When you cycle Jund Sojourners or it dies, you may have it deal 1 damage to any target.

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

When Jungle Wayfinder enters, each player may search their library for a basic land card, reveal it, put it into their hand, then shuffle.

: Untap target land.

Kicker (You may pay an additional as you cast this spell.)

When Juniper Order Rootweaver enters, if it was kicked, put a +1/+1 counter on target creature you control.

Flying

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