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

Flash

When Javelin of Lightning enters the battlefield, attach it to target creature you control.

As long as it's your turn, equipped creature gets +2/+0 and has first strike.

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

, : Draw a card.

, , Sacrifice Jester's Cap: Search target player's library for three cards and exile them. Then that player shuffles.

When Jester's Scepter enters the battlefield, exile the top five cards of target player's library face down. You may look at those cards for as long as they remain exiled.

, , Put a card exiled with Jester's Scepter into its owner's graveyard: Counter target spell if it has the same name as that card.

Black spells you cast cost less to cast.

More Than Meets the Eye (You may cast this card converted for .)

Flying

Remove one or more +1/+1 counters from among artifacts you control: Target player adds that much . This mana can't be spent to cast nonartifact spells. Convert Jetfire.

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.

As Jeweled Torque enters the battlefield, choose a color.

Whenever a player casts a spell of the chosen color, you may pay . If you do, you gain 2 life.

: Choose target permanent you control or suspended card you own. If that permanent or card has a time counter on it, you may remove a time counter from it or put another time counter on it.

At the beginning of your end step, target opponent gains control of Jinxed Choker and puts a charge counter on it.

At the beginning of your upkeep, Jinxed Choker deals damage to you equal to the number of charge counters on it.

: Put a charge counter on Jinxed Choker or remove one from it.

Whenever a nontoken permanent is put into your graveyard from the battlefield, Jinxed Ring deals 1 damage to you.

Sacrifice a creature: Target opponent gains control of Jinxed Ring. <I>(This effect lasts indefinitely.)</I>

, : Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Equipped creature gets +2/+0.

As long as it's your turn, equipped creature has first strike.

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

Juggernaut attacks each combat if able.

Juggernaut can't be blocked by Walls.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

When you play a card, sacrifice Juju Bubble.

: You gain 1 life.

Junk Golem enters the battlefield with three +1/+1 counters on it.

At the beginning of your upkeep, sacrifice Junk Golem unless you remove a +1/+1 counter from it.

, Discard a card: Put a +1/+1 counter on Junk Golem.

Defender

: Put target card from a graveyard on the bottom of its owner's library.

Creatures with power 1 or less don't untap during their controllers' untap steps.

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

When Kaleidostone enters the battlefield, draw a card.

, , Sacrifice Kaleidostone: Add .

Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control.

At the beginning of your upkeep, add for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

Karn's Sylex enters the battlefield tapped.

Players can't pay life to cast spells or to activate abilities that aren't mana abilities.

, , Exile Karn's Sylex: Destroy each nonland permanent with mana value X or less. Activate only as a sorcery.

, : Target player mills X cards, where X is the number of cards in that player's graveyard.

Blue creature spells you cast cost less to cast.

Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step.

For Mirrodin (When this Equipment enters the battlefield, create a 2/2 red Rebel creature token, then attach this to it.)

Equipped creature gets +1/+1 for each creature you control.

Equip

Key to the Archive enters the battlefield tapped.

When Key to the Archive enters the battlefield, draft a card from Key to the Archive's spellbook, then discard a card.

: Add two mana in any combination of colors.

When Khalni Gem enters the battlefield, return two lands you control to their owner's hand.

: Add two mana of any one color.

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

Lights — 2, 4, 6

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

Lights — 3, 4, 6

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

Lights — 4, 5, 6

Whenever Killer Cosplay becomes attached to a creature, choose a creature card name with an identical mana cost. That creature becomes a copy of the card with the chosen name until Killer Cosplay becomes unattached from it.

Equip

Spells you cast that refer to artifacts or Contraptions in their rules text cost less to cast.

Equipped creature gets +0/+3.

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

As long as it's your turn, equipped creature gets +1/+0 and has first strike.

, Sacrifice Knife: Draw a card.

Equip

First strike, protection from even collector numbers (Nothing with an even collector number can block, target, deal damage to, or attach to this creature.)

First strike, protection from odd collector numbers (Nothing with an odd collector number can block, target, deal damage to, or attach to this creature.)

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

Trample

Rapid-fire Battle Cannon — When Knight Paladin enters the battlefield, it deals 4 damage to each opponent.

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.)

: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.)

Whenever one or more +1/+1 counters are put on Knighted Myr, it gains double strike until end of turn.

, : Exile the top card of your library face down.

: Sacrifice Knowledge Vault. If you do, discard your hand, then put all cards exiled with Knowledge Vault into their owner's hand.

When Knowledge Vault leaves the battlefield, put all cards exiled with Knowledge Vault into their owner's graveyard.

Menace

Equipped creature gets +2/+2 and has menace.

Whenever Komainu Battle Armor or equipped creature deals combat damage to a player, goad each creature that player controls.

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Equipped creature gets +1/+1 and has vigilance.

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

Whenever a player casts a blue spell, you may gain 1 life.

If you would roll a die, instead roll two of those dice and ignore one of those results.

Flying, trample

When Krenko's Buzzcrusher enters the battlefield, for each player, destroy up to one nonbasic land that player controls. For each land destroyed this way, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle.

, : Prevent all damage that would be dealt this turn by target creature you control. That creature gets +0/+X until end of turn, where X is its mana value.

Equipped creature has ": This creature gets +1/+0 until end of turn."

Whenever equipped creature deals damage to a blocking creature, Kusari-Gama deals that much damage to each other creature defending player controls.

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

At the beginning of your upkeep, you may exile the top card of your library face down.

, Discard your hand, Sacrifice Kyren Archive: Put all cards exiled with Kyren Archive into their owner's hand.