Murders at Karlov Manor

Repulsive Mutation | Instant | | Put X +1/+1 counters on target creature you control. Then counter up to one target spell unless its controller pays mana equal to the greatest power among creatures you control. | Filip Burburan

Assassin's Trophy | Instant | | Destroy target permanent an opponent controls. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle. | Dmitry Burmak

Urgent Necropsy | Instant | | As an additional cost to cast this spell, collect evidence X, where X is the total mana value of the permanents this spell targets. Destroy up to one target artifact, up to one target creature, up to one target enchantment, and up to one target planeswalker. | Uriah Voth

Cease // Desist | Instant // Sorcery | | Exile up to two target cards from a single graveyard. Target player gains 2 life and draws a card. // Destroy all artifacts and enchantments. | 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