War of the Spark

Ajani, the Greathearted | Legendary Planeswalker | Ajani | Creatures you control have vigilance. +1: You gain 3 life. −2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control. | Victor Adame Minguez

Huatli's Raptor | Creature | Dinosaur | Vigilance When Huatli's Raptor enters the battlefield, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) | Randy Vargas

Pledge of Unity | Instant | | Put a +1/+1 counter on each creature you control. You gain 1 life for each creature you control. | Chris Rallis

Tolsimir, Friend to Wolves | Legendary Creature | Elf Scout | When Tolsimir, Friend to Wolves enters the battlefield, create Voja, Friend to Elves, a legendary 3/3 green and white Wolf creature token. Whenever a Wolf enters the battlefield under your control, you gain 3 life and that creature fights up to one target creature you don't control. | Ryan Pancoast

Huatli, the Sun's Heart | Legendary Planeswalker | Huatli | Each creature you control assigns combat damage equal to its toughness rather than its power. −3: You gain life equal to the greatest toughness among creatures you control. | Lius Lasahido

Niv-Mizzet Reborn | Legendary Creature | Dragon Avatar | Flying When Niv-Mizzet Reborn enters the battlefield, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order. | Raymond Swanland