Bloomburrow

Downwind Ambusher | Creature | Skunk Assassin | Flash When Downwind Ambusher enters, choose one — • Target creature an opponent controls gets -1/-1 until end of turn. • Destroy target creature an opponent controls that was dealt damage this turn. | Aaron Miller

Hazel's Nocturne | Instant | | Return up to two target creature cards from your graveyard to your hand. Each opponent loses 2 life and you gain 2 life. | Dominik Mayer

Sinister Monolith | Artifact | | At the beginning of combat on your turn, each opponent loses 1 life and you gain 1 life. {T}, Pay 2 life, Sacrifice Sinister Monolith: Draw two cards. Activate only as a sorcery. | Adam Paquette

Thornplate Intimidator | Creature | Rat Rogue | Offspring {3} (You may pay an additional {3} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.) When this creature enters, target opponent loses 3 life unless they sacrifice a nonland permanent or discard a card. | Daren Bader

Wick, the Whorled Mind | Legendary Creature | Rat Warlock | Whenever Wick or another Rat you control enters, create a 1/1 black Snail creature token if you don't control a Snail. Otherwise, put a +1/+1 counter on a Snail you control. {U}{B}{R}, Sacrifice a Snail: Wick deals damage equal to the sacrificed creature's power to each opponent. Then draw cards equal to the sacrificed creature's power. | Andrea Piparo

Mind Drill Assailant | Creature | Rat Warlock | Threshold — As long as seven or more cards are in your graveyard, Mind Drill Assailant gets +3/+0. {2}{U/B}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.) | Tuan Duong Chu

Vren, the Relentless | Legendary Creature | Rat Rogue | Ward {2} If a creature an opponent controls would die, exile it instead. At the beginning of each end step, create X 1/1 black Rat creature tokens with "This creature gets +1/+1 for each other Rat you control," where X is the number of creatures your opponents controlled that were exiled this turn. | Kevin Sidharta