Murders at Karlov Manor

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

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

Flotsam // Jetsam | Instant // Sorcery | | Mill three cards. Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") // Each opponent mills three cards, then you may cast a spell from each opponent's graveyard without paying its mana cost. If a spell cast this way would be put into a graveyard, exile it instead. | Anastasia Ovchinnikova

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