: Prevent the next 2 damage that would be dealt to target artifact creature this turn.

At the beginning of your upkeep, put a doom counter on Armageddon Clock.

At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player.

: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step.

You may choose not to untap Ashnod's Battle Gear during your untap step.

, : Target creature you control gets +2/-2 for as long as Ashnod's Battle Gear remains tapped.

Sacrifice an artifact: Atog gets +2/+2 until end of turn.

Whenever an opponent casts an artifact spell, put a +1/+1 counter on Citanul Druid.

Flying

Clockwork Avian enters with four +1/+0 counters on it.

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

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

Destroy target artifact. It can't be regenerated. That artifact's controller gains life equal to its mana value.

Players can't untap more than one artifact during their untap steps.

, Sacrifice an artifact: Put a +1/+1 counter on target creature. Activate only during your upkeep.

, Exile this artifact: Shuffle your graveyard into your library.

Sacrifice a creature: Destroy target artifact. Activate only during your upkeep and only once each turn.

: Grapeshot Catapult deals 1 damage to target creature with flying.

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

As long as Martyrs of Korlis is untapped, all damage that would be dealt to you by artifacts is dealt to Martyrs of Korlis instead.

, : Target player mills two cards.

When Onulet dies, you gain 2 life.

Flying

Whenever an artifact an opponent controls becomes tapped or an opponent activates an artifact's ability without in its activation cost, you gain 1 life.

: Prevent the next 1 damage that would be dealt to any target this turn. Return Rakalite to its owner's hand at the beginning of the next end step.

: Rocket Launcher deals 1 damage to any target. Destroy Rocket Launcher at the beginning of the next end step. Activate only if you've controlled Rocket Launcher continuously since the beginning of your most recent turn.

As Shapeshifter enters, choose a number between 0 and 7.

At the beginning of your upkeep, you may choose a number between 0 and 7.

Shapeshifter's power is equal to the last chosen number and its toughness is equal to 7 minus that number.

: Add .

, Sacrifice Strip Mine: Destroy target land.

, : Target creature with power 2 or less can't be blocked this turn.

As The Rack enters, choose an opponent.

At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand.

Sacrifice an artifact. If you do, search your library for an artifact card. If that card's mana value is less than or equal to the sacrificed artifact's mana value, put it onto the battlefield. If it's greater, you may pay , where X is the difference. If you do, put it onto the battlefield. If you don't, put it into its owner's graveyard. Then shuffle.

: Add . If you control an Urza's Mine and an Urza's Tower, add instead.

Defender (This creature can't attack.)

First strike

: Until your next upkeep, target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value.