Sentinel

Artifact Creature - Shapeshifter

: Sentinel's toughness becomes 1 plus the power of target creature blocking or blocked by Sentinel. (This effect lasts indefinitely.)

Coal Golem

Artifact Creature - Golem

, Sacrifice Coal Golem: Add to your mana pool.

"Three such creatures stood burning at the crest of the hill. Only seconds later, the Fireball struck our front line." -Lydia, Countess Brellis

Necropolis

Artifact Creature - Wall

Defender (This creature can't attack.)

Exile a creature card from your graveyard: Put X +0/+1 counters on Necropolis, where X is the exiled card's converted mana cost.

Scarecrow

Artifact Creature - Scarecrow

, : Prevent all damage that would be dealt to you this turn by creatures with flying.

There was more malice in its button eyes than should have been possible in something that had never known life.

Adarkar Sentinel

Artifact Creature - Soldier

: Adarkar Sentinel gets +0/+1 until end of turn.

"We encountered the Sentinels in the wastes, near no living thing. Their purpose was inscrutable."
-Disa the Restless, journal entry

Snow Fortress

Artifact Creature - Wall

Defender (This creature can't attack.)

: Snow Fortress gets +1/+0 until end of turn.

: Snow Fortress gets +0/+1 until end of turn.

: Snow Fortress deals 1 damage to target creature without flying that's attacking you.

Soldevi Golem

Artifact Creature - Golem

Soldevi Golem doesn't untap during your untap step.

At the beginning of your upkeep, you may untap target tapped creature an opponent controls. If you do, untap Soldevi Golem.

Slow and steady wins the race.

Soldevi Simulacrum

Artifact Creature - Soldier

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.)

: Soldevi Simulacrum gets +1/+0 until end of turn.

They look human-
until they bleed.

Walking Wall

Artifact Creature - Wall

Defender

: Walking Wall gets +3/-1 until end of turn and can attack this turn as though it didn't have defender. Activate this ability only once each turn.

"The fortress is not what it seems."
-Arcum Dagsson, Soldevi Machinist

Wall of Shields

Artifact Creature - Wall

Defender (This creature can't attack.)

Banding (If any creatures with banding you control are blocking a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by.)

"It's the pokey bits that hurt the most."
-Ib Halfheart, Goblin Tactician

Clockwork Gnomes

Artifact Creature - Gnome

, : Regenerate target artifact creature.

"Until I came to the Floating Isle, I never had to oil the servants."
-Baki, Wizard Attendant

Clockwork Swarm

Artifact Creature - Insect

Clockwork Swarm enters the battlefield with four +1/+0 counters on it.

Clockwork Swarm can't be blocked by Walls.

At end of combat, if Clockwork Swarm attacked or blocked this combat, remove a +1/+0 counter from it.

, : Put up to X +1/+0 counters on Clockwork Swarm. This ability can't cause the total number of +1/+0 counters on Clockwork Swarm to be greater than four. Activate this ability only during your upkeep.

Ebony Rhino

Artifact Creature - Rhino

Trample

"That Rhino would fetch us a tidy sum, Joven. Perhaps it's time to make it ours."
-Chandler

Roterothopter

Artifact Creature - Thopter

Flying

: Roterothopter gets +1/+0 until end of turn. Activate this ability no more than twice each turn.

"The Roterothopter is as insidious as it is ingenious. It is one of the few creations of our school that I take no pride in."
-Baki, Wizard Attendant

Basalt Golem

Artifact Creature - Golem

Basalt Golem can't be blocked by artifact creatures.

Whenever Basalt Golem becomes blocked by a creature, that creature's controller sacrifices it at end of combat. If the player does, he or she puts a 0/2 colorless Wall artifact creature token with defender onto the battlefield.

Crystal Golem

Artifact Creature - Golem

At the beginning of your end step, Crystal Golem phases out. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

"Once, a wealthy king commissioned an artificial creature to be crafted from the royal treasury, thinking it a clever ploy to have the jewels guard themselves."
-Azeworai, "The Golem's Wish"

Ersatz Gnomes

Artifact Creature - Gnome

: Target spell becomes colorless.

: Target permanent becomes colorless until end of turn.

From jungle to sea, from sea to stone, from stone to field, from field to bone. What am I? -Zhalfirin riddle

Horrible Hordes

Artifact Creature - Spirit

Rampage 1 (Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it beyond the first.)

Few are able to underestimate the hordes.

Igneous Golem

Artifact Creature - Golem

: Igneous Golem gains trample until end of turn.

"The creature rose from the mountain, its body weeping fire."
-Afari, Tales

Phyrexian Dreadnought

Artifact Creature - Dreadnought

Trample

When Phyrexian Dreadnought enters the battlefield, sacrifice it unless you sacrifice any number of creatures with total power 12 or greater.

Sand Golem

Artifact Creature - Golem

When a spell or ability an opponent controls causes you to discard Sand Golem, return Sand Golem from your graveyard to the battlefield with a +1/+1 counter on it at the beginning of the next end step.

Teeka's Dragon

Artifact Creature - Dragon

Flying; trample; rampage 4 (Whenever this creature becomes blocked, it gets +4/+4 until end of turn for each creature blocking it beyond the first.)

Brass-Talon Chimera

Artifact Creature - Chimera

First strike

Sacrifice Brass-Talon Chimera: Put a +2/+2 counter on target Chimera creature. It gains first strike. (This effect lasts indefinitely.)

Iron-Heart Chimera

Artifact Creature - Chimera

Vigilance

Sacrifice Iron-Heart Chimera: Put a +2/+2 counter on target Chimera creature. It gains vigilance. (This effect lasts indefinitely.)

Lead-Belly Chimera

Artifact Creature - Chimera

Trample

Sacrifice Lead-Belly Chimera: Put a +2/+2 counter on target Chimera creature. It gains trample. (This effect lasts indefinitely.)

Matopi Golem

Artifact Creature - Golem

: Regenerate Matopi Golem. When it regenerates this way, put a -1/-1 counter on it.

Some potmakers claim to use the mud of such creatures to make their finest bowls-and that the bowls scream when fired.

Phyrexian Marauder

Artifact Creature - Construct

Phyrexian Marauder enters the battlefield with X +1/+1 counters on it.

Phyrexian Marauder can't block.

Phyrexian Marauder can't attack unless you pay for each +1/+1 counter on it.

Phyrexian Walker

Artifact Creature - Construct

"I have heard terrible tales of black rains, ashen fields, and metal that screams. I have consoled myself that the tales were a myth of some fevered mind. But today I saw a walker-and now I fear the truth."
-Kasib Ibn Naji, Letters

Tin-Wing Chimera

Artifact Creature - Chimera

Flying

Sacrifice Tin-Wing Chimera: Put a +2/+2 counter on target Chimera creature. It gains flying. (This effect lasts indefinitely.)

Jangling Automaton

Artifact Creature - Construct

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

"We always look upon our first creations as masterpieces, no matter how awful they are."
-Hanna, Weatherlight navigator

Serrated Biskelion

Artifact Creature - Construct

: Put a -1/-1 counter on Serrated Biskelion and a -1/-1 counter on target creature.

"Whereas I was created to protect, the biskelion was created to destroy."
-Karn, silver golem

Straw Golem

Artifact Creature - Golem

When an opponent casts a creature spell, sacrifice Straw Golem.

"Don't look at me. I didn't build it."
-Hanna, Weatherlight navigator

Coiled Tinviper

Artifact Creature - Snake

First strike

The bite of the tinviper feels most like a razor drawn across the tongue.

Energizer

Artifact Creature - Juggernaut

, : Put a +1/+1 counter on Energizer.

Like a kettle set to boil, it must eventually go off-on someone.

Flowstone Sculpture

Artifact Creature - Shapeshifter

, Discard a card: Put a +1/+1 counter on Flowstone Sculpture or Flowstone Sculpture gains flying, first strike, or trample. (This effect lasts indefinitely.)

The sculptor, weary of his work, created art that would finish itself.

Manakin

Artifact Creature - Construct

: Add to your mana pool.

Hanna regarded Squee sternly. "Because it's not a toy, no matter how much it may look like one," she said, taking the manakin from him.

Metallic Sliver

Artifact Creature - Sliver

When the clever counterfeit was accepted by the hive, Volrath's influence upon the slivers grew even stronger.

Telethopter

Artifact Creature - Thopter

Tap an untapped creature you control: Telethopter gains flying until end of turn.

After losing several of the devices to midair collisions, Greven forbade moggs from operating telethopters.

Watchdog

Artifact Creature - Hound

Watchdog blocks each turn if able.

As long as Watchdog is untapped, all creatures attacking you get -1/-0.

Its growl is a long, rumbling grind of gears and clockwork, its bark a blast of hissing steam.

Shifting Wall

Artifact Creature - Wall

Defender (This creature can't attack.)

Shifting Wall enters the battlefield with X +1/+1 counters on it.

"You'd almost think Volrath doesn't want me here."
-Gerrard