Ravnica Allegiance

Seraph of the Scales | Creature | Angel | Flying {W}: Seraph of the Scales gains vigilance until end of turn. {B}: Seraph of the Scales gains deathtouch until end of turn. Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.) | Magali Villeneuve

Prime Speaker Vannifar | Legendary Creature | Elf Ooze Wizard | {T}, Sacrifice another creature: Search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put that card onto the battlefield, then shuffle. Activate only as a sorcery. | Kieran Yanner

Domri, Chaos Bringer | Legendary Planeswalker | Domri | +1: Add {R} or {G}. If that mana is spent on a creature spell, it gains riot. (It enters the battlefield with your choice of a +1/+1 counter or haste.) −3: Look at the top four cards of your library. You may reveal up to two creature cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order. −8: You get an emblem with "At the beginning of each end step, create a 4/4 red and green Beast creature token with trample." | Zack Stella