Murders at Karlov Manor

Cornered Crook | Creature | Viashino Warrior | When Cornered Crook enters the battlefield, you may sacrifice an artifact. When you do, Cornered Crook deals 3 damage to any target. | Gabor Szikszai

Offender at Large | Creature | Giant Rogue | Disguise {4}{R} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.) When Offender at Large enters the battlefield or is turned face up, up to one target creature gets +2/+0 until end of turn. | Mike Bierek

Rubblebelt Braggart | Creature | Viashino Warrior | Whenever Rubblebelt Braggart attacks, if it's not suspected, you may suspect it. (A suspected creature has menace and can't block.) | Leonardo Santanna

Aurelia, the Law Above | Legendary Creature | Angel | Flying, vigilance, haste Whenever a player attacks with three or more creatures, you draw a card. Whenever a player attacks with five or more creatures, Aurelia, the Law Above deals 3 damage to each of your opponents and you gain 3 life. | Lie Setiawan

Meddling Youths | Creature | Human Detective | Haste Whenever you attack with three or more creatures, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | Matt Forsyth

Judith, Carnage Connoisseur | Legendary Creature | Human Shaman | Whenever you cast an instant or sorcery spell, choose one — • That spell gains deathtouch and lifelink. • Create a 2/2 red Imp creature token with "When this creature dies, it deals 2 damage to each opponent." | Jodie Muir

Shady Informant | Creature | Ogre Rogue | When Shady Informant dies, it deals 2 damage to any target. Disguise {2}{B/R}{B/R} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.) | Caio Monteiro

Niv-Mizzet, Guildpact | Legendary Creature | Dragon Avatar | Flying, hexproof from multicolored Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors. | Chris Rallis