Goblin King

Other Goblins get +1/+1 and have mountainwalk.

Krosan Cloudscraper

At the beginning of your upkeep, sacrifice Krosan Cloudscraper unless you pay .
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Phage the Untouchable

When Phage the Untouchable enters the battlefield, if you didn’t cast it from your hand, you lose the game.
Whenever Phage deals combat damage to a creature, destroy that creature. It can’t be regenerated.
Whenever Phage deals combat damage to a player, that player loses the game.

Master of the Veil

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
When Master of the Veil is turned face up, you may turn target creature with a morph ability face down.

Elvish Soultiller

When Elvish Soultiller dies, choose a creature type. Shuffle all creature cards of that type from your graveyard into your library.

Brood Sliver

Whenever a Sliver deals combat damage to a player, its controller may create a 1/1 colorless Sliver creature token.

Tribal Unity

Creatures of the creature type of your choice get +X/+X until end of turn.

Animal Magnetism

Reveal the top five cards of your library. An opponent chooses a creature card from among them. Put that card onto the battlefield and the rest into your graveyard.

Biorhythm

Each player’s life total becomes the number of creatures they control.

Frightshroud Courier

You may choose not to untap Frightshroud Courier during your untap step.
, : Target Zombie creature gets +2/+2 and has fear for as long as Frightshroud Courier remains tapped. (It can’t be blocked except by artifact creatures and/or black creatures.)

Dream Chisel

Face-down creature spells you cast cost less to cast.

Spy Network

Look at target player’s hand, the top card of that player’s library, and any face-down creatures they control. Look at the top four cards of your library, then put them back in any order.

Aphetto Alchemist

: Untap target artifact or creature.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Trade Secrets

Target opponent draws two cards, then you draw up to four cards. That opponent may repeat this process as many times as they choose.

Syphon Soul

Syphon Soul deals 2 damage to each other player. You gain life equal to the damage dealt this way.

Naturalize

Destroy target artifact or enchantment.

Astral Slide

Whenever a player cycles a card, you may exile target creature. If you do, return that card to the battlefield under its owner’s control at the beginning of the next end step.

Lightning Surge

Lightning Surge deals 4 damage to any target.
Threshold — If seven or more cards are in your graveyard, instead Lightning Surge deals 6 damage to that permanent or player and the damage can’t be prevented.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Spurnmage Advocate

: Return two target cards from an opponent’s graveyard to their hand. Destroy target attacking creature.

Balthor the Stout

Other Barbarian creatures get +1/+1.
: Another target Barbarian creature gets +1/+0 until end of turn.

Crazed Firecat

When Crazed Firecat enters the battlefield, flip a coin until you lose a flip. Put a +1/+1 counter on Crazed Firecat for each flip you won.