Rivals of Ixalan

Famished Paladin | Creature | Vampire Knight | Famished Paladin doesn't untap during your untap step. Whenever you gain life, untap Famished Paladin. | Tommy Arnold

Silvergill Adept | Creature | Merfolk Wizard | As an additional cost to cast this spell, reveal a Merfolk card from your hand or pay {3}. When Silvergill Adept enters the battlefield, draw a card. | Magali Villeneuve

Oathsworn Vampire | Creature | Vampire Knight | Oathsworn Vampire enters the battlefield tapped. You may cast Oathsworn Vampire from your graveyard if you gained life this turn. | Greg Opalinski

Storm Fleet Swashbuckler | Creature | Human Pirate | Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) Storm Fleet Swashbuckler has double strike as long as you have the city's blessing. | Kieran Yanner

Cherished Hatchling | Creature | Dinosaur | When Cherished Hatchling dies, you may cast Dinosaur spells this turn as though they had flash, and whenever you cast a Dinosaur spell this turn, it gains "When this creature enters the battlefield, you may have it fight another target creature." | Sam Rowan

Legion Lieutenant | Creature | Vampire Knight | Other Vampires you control get +1/+1. | Zezhou Chen

Relentless Raptor | Creature | Dinosaur | Vigilance Relentless Raptor attacks or blocks each combat if able. | Matt Stewart

Merfolk Mistbinder | Creature | Merfolk Shaman | Other Merfolk you control get +1/+1. | Clint Cearley