Ixalan

Blight Keeper | Creature | Bat Imp | Flying {7}{B}, {T}, Sacrifice Blight Keeper: Target opponent loses 4 life and you gain 4 life. | Ben Wootten

Deadeye Tracker | Creature | Human Pirate | {1}{B}, {T}: Exile two target cards from an opponent's graveyard. Deadeye Tracker explores. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.) | Deruchenko Alexander

Skittering Heartstopper | Creature | Insect | {B}: Skittering Heartstopper gains deathtouch until end of turn. | Aaron Miller

Vicious Conquistador | Creature | Vampire Soldier | Whenever Vicious Conquistador attacks, each opponent loses 1 life. | Kieran Yanner