Modern Horizons 3 Promos

Crabomination

Crabomination {4}{B}{B}

Creature - Crab Demon
Emerge from artifact {5}{B}{B}
When Crabomination enters, target opponent exiles the top card of their library, a card at random from their graveyard, and a card at random from their hand. You may cast a spell from among cards exiled this way without paying its mana cost.
5/5
Emperor of Bones

Emperor of Bones {1}{B}

Creature - Skeleton Noble
At the beginning of combat on your turn, exile up to one target card from a graveyard.
{1}{B}: Adapt 2.
Whenever one or more +1/+1 counters are put on Emperor of Bones, put a creature card exiled with Emperor of Bones onto the battlefield under your control with a finality counter on it. It gains haste. Sacrifice it at the beginning of the next end step.
2/2
Flare of Malice

Flare of Malice {2}{B}{B}

Instant
You may sacrifice a nontoken black creature rather than pay this spell's mana cost.
Each opponent sacrifices a creature or planeswalker with the greatest mana value among creatures and planeswalkers they control.
"Suffer as I have suffered. Lose as I have lost."
Necrodominance

Necrodominance {B}{B}{B}

Legendary Enchantment
Skip your draw step.
At the beginning of your end step, you may pay any amount of life. If you do, draw that many cards.
Your maximum hand size is five.
If a card or token would be put into your graveyard from anywhere, exile it instead.
Nethergoyf

Nethergoyf {B}

Creature - Lhurgoyf
Nethergoyf's power is equal to the number of card types among cards in your graveyard and its toughness is equal to that number plus 1.
Escape — {2}{B}, Exile any number of other cards from your graveyard with four or more card types among them.
*/1+*
Ripples of Undeath

Ripples of Undeath {1}{B}

Enchantment
At the beginning of your first main phase, mill three cards. Then you may pay {1} and 3 life. If you do, put a card from among those cards into your hand.
As the monster lay dying, it stared into the eyes of the human who slew it. Decades later, it has yet to break its gaze.
Shilgengar, Sire of Famine

Shilgengar, Sire of Famine {3}{B}{B}

Legendary Creature - Elder Demon
Flying
Sacrifice another creature: Create a Blood token. If you sacrificed an Angel this way, create a number of Blood tokens equal to its toughness instead.
{W/B}{W/B}{W/B}, Sacrifice six Blood tokens: Return each creature card from your graveyard to the battlefield with a finality counter on it. Those creatures are Vampires in addition to their other types.
6/6
Warren Soultrader

Warren Soultrader {2}{B}

Creature - Zombie Goblin Wizard
Pay 1 life, Sacrifice another creature: Create a Treasure token.
"The living take their souls for granted. The dead know what they're worth."
3/3
Aether Revolt

Aether Revolt {2}{R}{R}

Enchantment
Revolt — As long as a permanent you controlled left the battlefield this turn, if a source you control would deal noncombat damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.
Whenever you get one or more {E}, Aether Revolt deals that much damage to any target.
Ashling, Flame Dancer

Ashling, Flame Dancer {2}{R}{R}

Legendary Creature - Elemental Shaman
You don't lose unspent red mana as steps and phases end.
Magecraft — Whenever you cast or copy an instant or sorcery spell, discard a card, then draw a card. If this is the second time this ability has resolved this turn, Ashling, Flame Dancer deals 2 damage to each opponent and each creature they control. If it's the third time, add {R}{R}{R}{R}.
4/4
Detective's Phoenix

Detective's Phoenix {2}{R}

Enchantment Creature - Phoenix
Bestow—{R}, Collect evidence 6.
Flying, haste
Enchanted creature gets +2/+2 and has flying and haste.
You may cast Detective's Phoenix from your graveyard using its bestow ability.
2/2
Eldrazi Linebreaker

Eldrazi Linebreaker {1}{C}{R}

Creature - Eldrazi
Devoid
Trample
At the beginning of combat on your turn, target creature you control gains haste and gets +X/+0 until end of turn, where X is the number of Eldrazi you control.
3/3
Flare of Duplication

Flare of Duplication {1}{R}{R}

Instant
You may sacrifice a nontoken red creature rather than pay this spell's mana cost.
Copy target instant or sorcery spell. You may choose new targets for the copy.
"Decent. But let me show you what mastery looks like."
Party Thrasher

Party Thrasher {1}{R}

Creature - Lizard Wizard
Noncreature spells you cast from exile have convoke.
At the beginning of your first main phase, you may discard a card. If you do, exile the top two cards of your library, then choose one of them. You may play that card this turn.
1/4
Powerbalance

Powerbalance {R}{R}

Enchantment
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, you may cast that card without paying its mana cost if the two spells have the same mana value.
For every action, a reaction. For every force, a firestorm.
Wheel of Potential

Wheel of Potential {2}{R}

Sorcery
You get {E}{E}{E}, then you may pay any amount of {E}.
Each player may exile their hand and draw a number of cards equal to the amount of {E} paid this way. If seven or more {E} was paid this way, you may play cards you own exiled this way until the end of your next turn.
The wheel only has one sure output: chaos.
Birthing Ritual

Birthing Ritual {1}{G}

Enchantment
At the beginning of your end step, if you control a creature, look at the top seven cards of your library. Then you may sacrifice a creature. If you do, you may put a creature card with mana value X or less from among those cards onto the battlefield, where X is 1 plus the sacrificed creature's mana value. Put the rest on the bottom of your library in a random order.
Eladamri, Korvecdal

Eladamri, Korvecdal {1}{G}{G}

Legendary Creature - Elf Warrior
You may look at the top card of your library any time.
You may cast creature spells from the top of your library.
{G}, {T}, Tap two untapped creatures you control: Reveal a card from your hand or the top card of your library. If you reveal a creature card this way, put it onto the battlefield. Activate only during your turn.
3/3
Fanatic of Rhonas

Fanatic of Rhonas {1}{G}

Creature - Snake Druid
{T}: Add {G}.
Ferocious{T}: Add {G}{G}{G}{G}. Activate only if you control a creature with power 4 or greater.
Eternalize {2}{G}{G}
1/4
Flare of Cultivation

Flare of Cultivation {1}{G}{G}

Sorcery
You may sacrifice a nontoken green creature rather than pay this spell's mana cost.
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
"You need to expand your horizons."
Primal Prayers

Primal Prayers {2}{G}{G}

Enchantment
When Primal Prayers enters, you get {E}{E}.
You may cast creature spells with mana value 3 or less by paying {E} rather than paying their mana costs. If you cast a spell this way, you may cast it as though it had flash.
When Gaea speaks, all of nature falls silent.
Six

Six {2}{G}

Legendary Creature - Treefolk
Reach
Whenever Six attacks, mill three cards. You may put a land card from among them into your hand.
During your turn, nonland permanent cards in your graveyard have retrace.
2/4
Sowing Mycospawn

Sowing Mycospawn {3}{G}

Creature - Eldrazi Fungus
Devoid
Kicker {1}{C}
When you cast this spell, search your library for a land card, put it onto the battlefield, then shuffle.
When you cast this spell, if it was kicked, exile target land.
3/3
Springheart Nantuko

Springheart Nantuko {1}{G}

Enchantment Creature - Insect Monk
Bestow {1}{G}
Enchanted creature gets +1/+1.
Landfall — Whenever a land you control enters, you may pay {1}{G} if Springheart Nantuko is attached to a creature you control. If you do, create a token that's a copy of that creature. If you didn't create a token this way, create a 1/1 green Insect creature token.
1/1
Thief of Existence

Thief of Existence {1}{C}{G}

Creature - Eldrazi
Devoid
When you cast this spell, exile up to one target noncreature, nonland permanent an opponent controls with mana value 4 or less. If you do, Thief of Existence gains "When this creature leaves the battlefield, target opponent draws a card."
3/4