Ugin's Conjurant

Creature — Spirit Monk (0/0)

Ugin's Conjurant enters the battlefield with X +1/+1 counters on it.
If damage would be dealt to Ugin's Conjurant while it has a +1/+1 counter on it, prevent that damage and remove that many +1/+1 counters from Ugin's Conjurant.

Urza's Bauble

Artifact

, Sacrifice Urza's Bauble: Look at a card at random in target player's hand. You draw a card at the beginning of the next turn's upkeep.

Urza's Contact Lenses

Artifact

Urza's Contact Lenses enters the battlefield tapped.
Urza's Contact Lenses doesn't untap during your untap step.
As long as Urza's Contact Lenses is untapped, all players play with their hands revealed.
Clap your hands twice: You may tap or untap Urza's Contact Lenses.

Vault of Whispers

Artifact Land

: Add .

Welding Jar

Artifact

Sacrifice Welding Jar: Regenerate target artifact.

Westvale Abbey // Ormendahl, Profane Prince

Land // Legendary Creature — Demon (0/0)

: Add .
, , Pay 1 life: Create a 1/1 white and black Human Cleric creature token.
, , Sacrifice five creatures: Transform Westvale Abbey, then untap it.

Ormendahl, Profane Prince

Flying, lifelink, indestructible, haste

Widget Contraption

Artifact — Contraption

Whenever you crank Widget Contraption, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Zuran Orb

Artifact

Sacrifice a land: You gain 2 life.

Academy Manufactor

Artifact Creature — Assembly-Worker (1/3)

If you would create a Clue, Food, or Treasure token, instead create one of each.

Accomplished Automaton

Artifact Creature — Construct (5/7)

Fabricate 1 (When this creature enters the battlefield, put a +1/+1 counter on it or create a 1/1 colorless Servo artifact creature token.)

Adaptive Automaton

Artifact Creature — Construct (2/2)

As Adaptive Automaton enters the battlefield, choose a creature type.
Adaptive Automaton is the chosen type in addition to its other types.
Other creatures you control of the chosen type get +1/+1.

Adarkar Sentinel

Artifact Creature — Soldier (3/3)

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

Aegis Automaton

Artifact Creature — Construct (0/3)

: Return another target creature you control to its owner's hand.

Aesthir Glider

Artifact Creature — Bird Construct (2/1)

Flying
Aesthir Glider can't block.

Aether Searcher

Artifact Creature — Construct (6/4)

Reveal Aether Searcher as you draft it. Reveal the next card you draft and note its name.
When Aether Searcher enters the battlefield, you may search your hand and/or library for a card with a name noted as you drafted cards named Aether Searcher. You may cast it without paying its mana cost. If you searched your library this way, shuffle.

Agent of Acquisitions

Artifact Creature — Construct (2/1)

Draft Agent of Acquisitions face up.
Instead of drafting a card from a booster pack, you may draft each card in that booster pack, one at a time. If you do, turn Agent of Acquisitions face down and you can't draft cards for the rest of this draft round. (You may look at booster packs passed to you.)

Akroan Horse

Artifact Creature — Horse (0/4)

Defender
When Akroan Horse enters the battlefield, an opponent gains control of it.
At the beginning of your upkeep, each opponent creates a 1/1 white Soldier creature token.

Alloy Golem

Artifact Creature — Golem (4/4)

As Alloy Golem enters the battlefield, choose a color.
Alloy Golem is the chosen color. (It's still an artifact.)

Alloy Myr

Artifact Creature — Myr (2/2)

: Add one mana of any color.

Alpha Myr

Artifact Creature — Myr (2/1)