Rivals of Ixalan

Skymarcher Aspirant | Creature | Vampire Soldier | Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) Skymarcher Aspirant has flying as long as you have the city's blessing. | Winona Nelson

Snubhorn Sentry | Creature | Dinosaur | Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.) Snubhorn Sentry gets +3/+0 as long as you have the city's blessing. | Aaron Miller

Mist-Cloaked Herald | Creature | Merfolk Warrior | Mist-Cloaked Herald can't be blocked. | Anthony Palumbo

Grasping Scoundrel | Creature | Human Pirate | Grasping Scoundrel gets +1/+0 as long as it's attacking. | Steve Prescott

Daring Buccaneer | Creature | Human Pirate | As an additional cost to cast this spell, reveal a Pirate card from your hand or pay {2}. | Jason Rainville

Fanatical Firebrand | Creature | Goblin Pirate | Haste {T}, Sacrifice Fanatical Firebrand: It deals 1 damage to any target. | Wayne Reynolds

Jade Bearer | Creature | Merfolk Shaman | When Jade Bearer enters the battlefield, put a +1/+1 counter on another target Merfolk you control. | Alex Konstad