Murders at Karlov Manor

Case of the Burning Masks | Enchantment | Case | When this Case enters the battlefield, it deals 3 damage to target creature an opponent controls. To solve — Three or more sources you controlled dealt damage this turn. (If unsolved, solve at the beginning of your end step.) Solved — Sacrifice this Case: Exile the top three cards of your library. Choose one of them. You may play that card this turn. | Bastien L. Deharme

Crime Novelist | Creature | Goblin Bard | Whenever you sacrifice an artifact, put a +1/+1 counter on Crime Novelist and add {R}. | Izzy

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