Wild Slash

Ferocious — If you control a creature with power 4 or greater, damage can’t be prevented this turn.
Wild Slash deals 2 damage to any target.

Ugin, the Spirit Dragon

+2: Ugin, the Spirit Dragon deals 3 damage to any target.
−X: Exile each permanent with converted mana cost X or less that’s one or more colors.
−10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Whisperwood Elemental

At the beginning of your end step, manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it’s a creature card.)
Sacrifice Whisperwood Elemental: Until end of turn, face-up nontoken creatures you control gain “When this creature dies, manifest the top card of your library.”

Fell the Mighty

Destroy all creatures with power greater than target creature’s power.

Wurmcoil Engine

Deathtouch, lifelink
When Wurmcoil Engine dies, create a 3/3 colorless Wurm artifact creature token with deathtouch and a 3/3 colorless Wurm artifact creature token with lifelink.

Phalanx Leader

Heroic — Whenever you cast a spell that targets Phalanx Leader, put a +1/+1 counter on each creature you control.

Devil’s Play

Devil’s Play deals X damage to any target.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Trap Essence

Counter target creature spell. Put two +1/+1 counters on up to one target creature.

Trail of Mystery

Whenever a face-down creature enters the battlefield under your control, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.
Whenever a permanent you control is turned face up, if it’s a creature, it gets +2/+2 until end of turn.

Thousand Winds

Flying
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 Thousand Winds is turned face up, return all other tapped creatures to their owners’ hands.

Trap Essence

Counter target creature spell. Put two +1/+1 counters on up to one target creature.

Morph

(You can cover a face-down creature with this reminder card.
A card with morph can be turned face up any time for its morph cost.)

Sagu Mauler

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

Lens of Clarity

You may look at the top card of your library and at face-down creatures you don’t control any time.

Bloodfire Expert

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Trail of Mystery

Whenever a face-down creature enters the battlefield under your control, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.
Whenever a permanent you control is turned face up, if it’s a creature, it gets +2/+2 until end of turn.

Thousand Winds

Flying
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 Thousand Winds is turned face up, return all other tapped creatures to their owners’ hands.

Thousand Winds

Flying
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 Thousand Winds is turned face up, return all other tapped creatures to their owners’ hands.

Banefire

Banefire deals X damage to any target.
If X is 5 or more, this spell can’t be countered and the damage can’t be prevented.

Firespout

Firespout deals 3 damage to each creature without flying if was spent to cast this spell and 3 damage to each creature with flying if was spent to cast this spell. (Do both if was spent.)