Ixalan

Emissary of Sunrise | Creature | Human Cleric | First strike When Emissary of Sunrise enters the battlefield, it 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

Inspiring Cleric | Creature | Vampire Cleric | When Inspiring Cleric enters the battlefield, you gain 4 life. | Randy Gallegos

Kinjalli's Sunwing | Creature | Dinosaur | Flying Creatures your opponents control enter the battlefield tapped. | Simon Dominic

Legion Conquistador | Creature | Vampire Soldier | When Legion Conquistador enters the battlefield, you may search your library for any number of cards named Legion Conquistador, reveal them, put them into your hand, then shuffle. | Sidharth Chaturvedi

Mavren Fein, Dusk Apostle | Legendary Creature | Vampire Cleric | Whenever one or more nontoken Vampires you control attack, create a 1/1 white Vampire creature token with lifelink. | Daarken

Territorial Hammerskull | Creature | Dinosaur | Whenever Territorial Hammerskull attacks, tap target creature an opponent controls. | Lars Grant-West