Murders at Karlov Manor

Blood Spatter Analysis | Enchantment | | When Blood Spatter Analysis enters the battlefield, it deals 3 damage to target creature an opponent controls. Whenever one or more creatures die, mill a card and put a bloodstain counter on Blood Spatter Analysis. Then sacrifice it if it has five or more bloodstain counters on it. When you do, return target creature card from your graveyard to your hand. | Jokubas Uogintas

Deadly Complication | Sorcery | | Choose one or both — • Destroy target creature. • Put a +1/+1 counter on target suspected creature you control. You may have it become no longer suspected. | Jodie Muir

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

Rakdos, Patron of Chaos | Legendary Creature | Demon | Flying, trample At the beginning of your end step, target opponent may sacrifice two nonland, nontoken permanents. If they don't, you draw two cards. | Joshua Raphael

Rune-Brand Juggler | Creature | Human Shaman | When Rune-Brand Juggler enters the battlefield, suspect up to one target creature you control. (A suspected creature has menace and can't block.) {3}{B}{R}, Sacrifice a suspected creature: Target creature gets -5/-5 until end of turn. | Mila Pesic

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

Push // Pull | Sorcery // Sorcery | | Destroy target tapped creature. // Put up to two target creature cards from a single graveyard onto the battlefield under your control. They gain haste until end of turn. Sacrifice them at the beginning of the next end step. | Eli Minaya

Leyline of the Guildpact | Enchantment | | If Leyline of the Guildpact is in your opening hand, you may begin the game with it on the battlefield. Each nonland permanent you control is all colors. Lands you control are every basic land type in addition to their other types. | Daarken

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

Raucous Theater | Land | Swamp Mountain | ({T}: Add {B} or {R}.) Raucous Theater enters the battlefield tapped. When Raucous Theater enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) | Sergey Glushakov