Murders at Karlov Manor

Detective's Satchel | Artifact | | When Detective's Satchel enters the battlefield, investigate twice. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") {T}: Create a 1/1 colorless Thopter artifact creature token with flying. Activate only if you've sacrificed an artifact this turn. | Andrew Mar

Gadget Technician | Creature | Goblin Artificer | When Gadget Technician enters the battlefield or is turned face up, create a 1/1 colorless Thopter artifact creature token with flying. Disguise {U/R}{U/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

Gleaming Geardrake | Artifact Creature | Drake | Flying When Gleaming Geardrake enters the battlefield, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Whenever you sacrifice an artifact, put a +1/+1 counter on Gleaming Geardrake. | Filipe Pagliuso

Ill-Timed Explosion | Sorcery | | Draw two cards. Then you may discard two cards. When you do, Ill-Timed Explosion deals X damage to each creature, where X is the greatest mana value among cards discarded this way. | Aaron J. Riley

Kylox, Visionary Inventor | Legendary Creature | Viashino Artificer | Menace, ward {2}, haste Whenever Kylox, Visionary Inventor attacks, sacrifice any number of other creatures, then exile the top X cards of your library, where X is their total power. You may cast any number of instant and/or sorcery spells from among the exiled cards without paying their mana costs. | Lie Setiawan

Kylox's Voltstrider | Artifact | Vehicle | Collect evidence 6: Kylox's Voltstrider becomes an artifact creature until end of turn. Whenever Kylox's Voltstrider attacks, you may cast an instant or sorcery spell from among cards exiled with it. If that spell would be put into a graveyard, put it on the bottom of its owner's library instead. Crew 2 | Volkan Baǵa

Fuss // Bother | Instant // Sorcery | | Put a +1/+1 counter on each attacking creature you control. // Create three 1/1 colorless Thopter artifact creature tokens with flying. Surveil 2. | Dominik Mayer

Hustle // Bustle | Instant // Sorcery | | Target creature attacks or blocks this turn if able. // Creatures you control get +2/+2 and gain trample until end of turn. You may turn a creature you control face up. | Valera Lutfullina

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

Thundering Falls | Land | Island Mountain | ({T}: Add {U} or {R}.) Thundering Falls enters the battlefield tapped. When Thundering Falls enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) | Grady Frederick