Guilds of Ravnica

Disdainful Stroke | Instant | | Counter target spell with mana value 4 or greater. | Deruchenko Alexander

Mission Briefing | Instant | | Surveil 2, then choose an instant or sorcery card in your graveyard. You may cast it this turn. If that spell would be put into your graveyard, exile it instead. (To surveil 2, look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) | Matt Stewart

Radical Idea | Instant | | Draw a card. Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.) | Izzy

Unexplained Disappearance | Instant | | Return target creature to its owner's hand. Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) | Izzy

Expansion | Instant | | Copy target instant or sorcery spell with mana value 4 or less. You may choose new targets for the copy. | Deruchenko Alexander