Guardian Automaton

When this creature dies, you gain 3 life.

Steel Exemplar

Trample
This creature enters with two +1/+1 counters on it unless two or more colors of mana were spent to cast it.

Deserter's Quarters

You may choose not to untap this artifact during your untap step.
{6}, {T}: Tap target creature. It doesn't untap during its controller's untap step for as long as this artifact remains tapped.

Culling Scales

At the beginning of your upkeep, destroy target nonland permanent with the lowest mana value. (If two or more permanents are tied for lowest, target any one of them.)

Bonded Construct

Walking Atlas

{T}: You may put a land card from your hand onto the battlefield.

Forensic Researcher

{T}: Untap another target permanent you control.
{T}, Collect evidence 3: Tap target creature you don't control. (To collect evidence 3, exile cards with total mana value 3 or greater from your graveyard.)

Vial of Dragonfire

{2}, {T}, Sacrifice this artifact: It deals 2 damage to target creature.

Oneirophage

Flying
Whenever you draw a card, put a +1/+1 counter on this creature.

Peace Strider

When this creature enters, you gain 3 life.

Negate

Aetherjacket

Flying, vigilance
{2}, {T}, Sacrifice this creature: Destroy another target artifact. Activate only as a sorcery.

Gold-Forged Sentinel

Relic's Roar

Until end of turn, target artifact or creature becomes a Dinosaur artifact creature with base power and toughness 4/3 in addition to its other types.

Scrap Compactor

{3}, {T}, Sacrifice this artifact: It deals 3 damage to target creature.
{6}, {T}, Sacrifice this artifact: Destroy target creature or Vehicle.

Urza, Powerstone Prodigy

Vigilance
{1}, {T}: Draw a card, then discard a card.
Whenever you discard one or more artifact cards, create a tapped Powerstone token. This ability triggers only once each turn. (The token is an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

Field of Ruin

{T}: Add {C}.
{2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles.

Aether Syphon

Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
{2}, {T}: Draw a card.
Max speed — Whenever you draw a card, each opponent mills two cards. (Each opponent puts the top two cards of their library into their graveyard.)

Frilled Cave-Wurm

Descend 4 — This creature gets +2/+0 as long as there are four or more permanent cards in your graveyard.

Countermand

Counter target spell. Its controller mills four cards.

Aether Adept

When this creature enters, return target creature to its owner's hand.

Island

Watcher for Tomorrow

Hideaway 4 (When this creature enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)
This creature enters tapped.
When this creature leaves the battlefield, put the exiled card into its owner's hand.

Dusk Legion Dreadnought

Vigilance
Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Threefold Thunderhulk

This creature enters with three +1/+1 counters on it.
Whenever this creature enters or attacks, create a number of 1/1 colorless Gnome artifact creature tokens equal to its power.
{2}, Sacrifice another artifact: Put a +1/+1 counter on this creature.

Aeronaut's Wings

Equipped creature gets +1/+0 and has flying.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Wing Splicer

When this creature enters, create a 3/3 colorless Phyrexian Golem artifact creature token.
Golem creatures you control have flying.

Clever Conjurer

Mage Hand — {T}: Untap target permanent not named Clever Conjurer. Activate only as a sorcery.

Argivian Avenger

{1}: Until end of turn, this creature gets -1/-1 and gains your choice of flying, vigilance, deathtouch, or haste.

Ghoulcaller's Bell

Sleek Schooner

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.)

Sky Diamond

This artifact enters tapped.
{T}: Add {U}.

Marketback Walker

This creature enters with X +1/+1 counters on it.
{4}: Put a +1/+1 counter on this creature.
When this creature dies, draw a card for each +1/+1 counter on it.

Guardians of Meletis

Cobbled Wings

Equipped creature has flying.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Wreck Remover

Whenever this creature enters or attacks, exile up to one target card from a graveyard. You gain 1 life.
Cycling {2} ({2}, Discard this card: Draw a card.)

Cloak of the Bat

Equipped creature has flying and haste.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Will-Forged Golem

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

Reconstructed Thopter

Flying
Unearth {2} ({2}: 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.)

Tyrant's Machine

Cancel

Curiosity

Enchant creature
Whenever enchanted creature deals damage to an opponent, you may draw a card.

Ancestral Statue

When this creature enters, return a nonland permanent you control to its owner's hand.

Dive Down

Target creature you control gets +0/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Raven Wings

Equipped creature gets +1/+0, has flying, and is a Bird in addition to its other types.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Hunter's Blowgun

Equipped creature gets +1/+1.
Equipped creature has deathtouch during your turn. Otherwise, it has reach.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Ioreth of the Healing House

{T}: Untap another target permanent.
{T}: Untap two other target legendary creatures.

Rod of Ruin

{3}, {T}: This artifact deals 1 damage to any target.

Elaborate Firecannon

This artifact doesn't untap during your untap step.
{4}, {T}: This artifact deals 2 damage to any target.
At the beginning of your upkeep, you may discard a card. If you do, untap this artifact.

Tapestry of the Ages

{2}, {T}: Draw a card. Activate only if you've cast a noncreature spell this turn.

Runaway Boulder

Flash
When this artifact enters, it deals 6 damage to target creature an opponent controls.
Cycling {2} ({2}, Discard this card: Draw a card.)

Stream of Thought

Target player mills four cards. You shuffle up to four cards from your graveyard into your library.
Replicate {2}{U}{U} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Triskaidekaphile

You have no maximum hand size.
At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game.
{3}{U}: Draw a card.

Retraction Helix

Until end of turn, target creature gains "{T}: Return target nonland permanent to its owner's hand."

Strandwalker

Living weapon (When this Equipment enters, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)
Equipped creature gets +2/+4 and has reach.
Equip {4}

Gilded Sentinel

Phantasmal Form

Until end of turn, up to two target creatures each have base power and toughness 3/3, gain flying, and become blue Illusions in addition to their other colors and types.
Draw a card.

Reduce in Stature

Enchant creature
Enchanted creature has base power and toughness 0/2.

Hurl into History

Counter target artifact or creature spell. Discover X, where X is that spell's mana value. (Exile cards from the top of your library until you exile a nonland card with that mana value or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Thran Golem

As long as this creature is enchanted, it gets +2/+2 and has flying, first strike, and trample.

Weakstone's Subjugation

Enchant artifact or creature
When this Aura enters, you may pay {3}. If you do, tap enchanted permanent.
Enchanted permanent doesn't untap during its controller's untap step.

The Core

(Transforms from Matzalantli.)
Fathomless descent — {T}: Add X mana of any one color, where X is the number of permanent cards in your graveyard.

Matzalantli, the Great Door

{T}: Draw a card, then discard a card.
{4}, {T}: Transform Matzalantli. Activate only if there are four or more permanent types among cards in your graveyard. (Artifact, battle, creature, enchantment, land, and planeswalker are permanent types.)

Matzalantli, the Great Door // The Core

Alchemist's Vial

When this artifact enters, draw a card.
{1}, {T}, Sacrifice this artifact: Target creature can't attack or block this turn.

Silver Deputy

When this creature enters, you may search your library for a basic land card or a Desert card, reveal it, then shuffle and put it on top.
{T}: Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery.

Artful Dodge

Target creature can't be blocked this turn.
Flashback {U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Gorgon's Head

Equipped creature has deathtouch.
Equip {2}

Master Thief

When this creature enters, gain control of target artifact for as long as you control this creature.

Throwing Knife

Equipped creature gets +2/+0.
Whenever equipped creature attacks, you may sacrifice this Equipment. If you do, this Equipment deals 2 damage to any target.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Slagstone Refinery

Whenever this artifact or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

Siren Song Lyre

Equipped creature has "{2}, {T}: Tap target creature."
Equip {2}

Geistcatcher's Rig

When this creature enters, you may have it deal 4 damage to target creature with flying.

Fleetfeather Sandals

Chart a Course

Draw two cards. Then discard a card unless you attacked this turn.

Unlucky Drop

Target artifact or creature's owner puts it on their choice of the top or bottom of their library.

Sigiled Starfish

{T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)