Ravnica Allegiance

Unbreakable Formation | Instant | | Creatures you control gain indestructible until end of turn. Addendum — If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn. | Matt Stewart

Verity Circle | Enchantment | | Whenever a creature an opponent controls becomes tapped, if it isn't being declared as an attacker, you may draw a card. {4}{U}: Tap target creature without flying. | Volkan Baǵa

Pestilent Spirit | Creature | Spirit | Menace, deathtouch Instant and sorcery spells you control have deathtouch. (Any amount of damage they deal to a creature is enough to destroy it.) | Anastasia Ovchinnikova

Absorb | Instant | | Counter target spell. You gain 3 life. | Izzy

Deputy of Detention | Creature | Vedalken Wizard | When Deputy of Detention enters the battlefield, exile target nonland permanent an opponent controls and all other nonland permanents that player controls with the same name as that permanent until Deputy of Detention leaves the battlefield. | G-host Lee

Bedevil | Instant | | Destroy target artifact, creature, or planeswalker. | Seb McKinnon

Judith, the Scourge Diva | Legendary Creature | Human Shaman | Other creatures you control get +1/+0. Whenever a nontoken creature you control dies, Judith, the Scourge Diva deals 1 damage to any target. | Wesley Burt

Theater of Horrors | Enchantment | | At the beginning of your upkeep, exile the top card of your library. During your turn, if an opponent lost life this turn, you may play lands and cast spells from among cards exiled with Theater of Horrors. {3}{R}: Theater of Horrors deals 1 damage to target opponent or planeswalker. | Daarken

Gruul Spellbreaker | Creature | Ogre Warrior | Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) Trample As long as it's your turn, you and Gruul Spellbreaker have hexproof. | Zoltan Boros