
Archenemy's Charm | Instant | | Choose one —
• Exile target creature or planeswalker.
• Return one or two target creature and/or planeswalker cards from your graveyard to your hand.
• Put two +1/+1 counters on target creature you control. It gains lifelink until end of turn. | Brigitte Roka & Clifton Stommel

Chorale of the Void | Enchantment | Aura | Enchant creature you control
Whenever enchanted creature attacks, put target creature card from defending player's graveyard onto the battlefield under your control tapped and attacking.
Void — At the beginning of your end step, sacrifice this Aura unless a nonland permanent left the battlefield this turn or a spell was warped this turn. | Alix Branwyn

Elegy Acolyte | Creature | Human Cleric | Lifelink
Whenever one or more creatures you control deal combat damage to a player, you draw a card and lose 1 life.
Void — At the beginning of your end step, if a nonland permanent left the battlefield this turn or a spell was warped this turn, create a 2/2 colorless Robot artifact creature token. | Diana Franco

Entropic Battlecruiser | Artifact | Spacecraft | Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 8+.)
STATION 1+
Whenever an opponent discards a card, they lose 3 life.
STATION 8+
Flying, deathtouch
Whenever this Spacecraft attacks, each opponent discards a card. Each opponent who doesn't loses 3 life. | Josiah "Jo" Cameron

Requiem Monolith | Artifact | | {T}: Until end of turn, target creature gains "Whenever this creature is dealt damage, you draw that many cards and lose that much life." That creature's controller may have this artifact deal 1 damage to it. Activate only as a sorcery. | Warren Mahy

Sunset Saboteur | Creature | Human Rogue | Menace
Ward—Discard a card.
Whenever this creature attacks, put a +1/+1 counter on target creature an opponent controls. | Mirko Failoni

Xu-Ifit, Osteoharmonist | Legendary Creature | Human Wizard | {T}: Return target creature card from your graveyard to the battlefield. It's a Skeleton in addition to its other types and has no abilities. Activate only as a sorcery. | Michal Ivan

Zero Point Ballad | Sorcery | | Destroy all creatures with toughness X or less. You lose X life. If X is 6 or more, return a creature card put into a graveyard this way to the battlefield under your control. | David Astruga

Syr Vondam, Sunstar Exemplar | Legendary Creature | Human Knight | Vigilance, menace
Whenever another creature you control dies or is put into exile, put a +1/+1 counter on Syr Vondam and you gain 1 life.
When Syr Vondam dies or is put into exile while its power is 4 or greater, destroy up to one target nonland permanent. | Ryan Pancoast

Singularity Rupture | Sorcery | | Destroy all creatures, then any number of target players each mill half their library, rounded down. | Liiga Smilshkalne

Mutinous Massacre | Sorcery | | Choose odd or even. Destroy each creature with mana value of the chosen quality. Then gain control of all creatures until end of turn. Untap them. They gain haste until end of turn. (Zero is even.) | Quintin Gleim

Cosmogoyf | Creature | Elemental Lhurgoyf | This creature's power is equal to the number of cards you own in exile and its toughness is equal to that number plus 1. | Chris Rahn

Infinite Guideline Station | Legendary Artifact | Spacecraft | When Infinite Guideline Station enters, create a tapped 2/2 colorless Robot artifact creature token for each multicolored permanent you control.
Station (Tap another creature you control: Put charge counters equal to its power on this Spacecraft. Station only as a sorcery. It's an artifact creature at 12+.)
STATION 12+
Flying
Whenever Infinite Guideline Station attacks, draw a card for each multicolored permanent you control. | Piotr Dura

Godless Shrine | Land | Plains Swamp | ({T}: Add {W} or {B}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped. | Rob Rey

Watery Grave | Land | Island Swamp | ({T}: Add {U} or {B}.)
As this land enters, you may pay 2 life. If you don't, it enters tapped. | Sergey Glushakov