Atarka Efreet

Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Atarka Efreet is turned face up, it deals 1 damage to any target.

Swift Warkite

Flying
When Swift Warkite enters, you may put a creature card with mana value 3 or less from your hand or graveyard onto the battlefield. That creature gains haste. Return it to your hand at the beginning of the next end step.

Minister of Pain

Exploit (When this creature enters, you may sacrifice a creature.)
When Minister of Pain exploits a creature, creatures your opponents control get -1/-1 until end of turn.

Honor’s Reward

You gain 4 life. Bolster 2. (Choose a creature with the least toughness among creatures you control and put two +1/+1 counters on it.)

Shardless Agent

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Sultai Flayer

Whenever a creature you control with toughness 4 or greater dies, you gain 4 life.

Witness of the Ages

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

Impulse

Look at the top four cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Geist of Saint Traft

Hexproof (This creature can’t be the target of spells or abilities your opponents control.)
Whenever Geist of Saint Traft attacks, create a 4/4 white Angel creature token with flying that’s tapped and attacking. Exile that token at end of combat.

Geist of Saint Traft

Hexproof (This creature can’t be the target of spells or abilities your opponents control.)
Whenever Geist of Saint Traft attacks, create a 4/4 white Angel creature token with flying that’s tapped and attacking. Exile that token at end of combat.

Frost Lynx

When Frost Lynx enters, tap target creature an opponent controls. That creature doesn’t untap during its controller’s next untap step.

Heliod’s Pilgrim

When Heliod’s Pilgrim enters, you may search your library for an Aura card, reveal it, put it into your hand, then shuffle.

Triplicate Spirits

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Create three 1/1 white Spirit creature tokens with flying.

Mercurial Pretender

You may have Mercurial Pretender enter as a copy of a creature you control, except it has “: Return this creature to its owner’s hand.”

Haunted Plate Mail

Equipped creature gets +4/+4.
: Until end of turn, Haunted Plate Mail becomes a 4/4 Spirit artifact creature that’s no longer an Equipment. Activate only if you control no creatures.
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Fires of Yavimaya

Creatures you control have haste.
Sacrifice Fires of Yavimaya: Target creature gets +2/+2 until end of turn.

Psychatog

Discard a card: Psychatog gets +1/+1 until end of turn.
Exile two cards from your graveyard: Psychatog gets +1/+1 until end of turn.

Unexpected Potential

Hidden agenda (Start the game with this conspiracy face down in the command zone and secretly choose a card name. You may turn this conspiracy face up any time and reveal that name.)
You may spend mana as though it were mana of any color to cast spells with the chosen name.

Fires of Yavimaya

Creatures you control have haste.
Sacrifice Fires of Yavimaya: Target creature gets +2/+2 until end of turn.