Guilds of Ravnica

Dimir Informant | Creature | Human Rogue | When Dimir Informant enters the battlefield, 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.) | Lucas Graciano

Leapfrog | Creature | Frog | Leapfrog has flying as long as you've cast an instant or sorcery spell this turn. | Aaron Miller

Darkblade Agent | Creature | Human Assassin | As long as you've surveilled this turn, Darkblade Agent has deathtouch and "Whenever this creature deals combat damage to a player, you draw a card." | Joe Slucher

Notion Rain | Sorcery | | Surveil 2, then draw two cards. Notion Rain deals 2 damage to you. (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.) | Lius Lasahido

Whisper Agent | Creature | Human Rogue | Flash When Whisper Agent enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) | Deruchenko Alexander

Sonic Assault | Instant | | Tap target creature. Sonic Assault deals 2 damage to that creature's controller. 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.) | Tyler Walpole

Piston-Fist Cyclops | Creature | Cyclops | Defender As long as you've cast an instant or sorcery spell this turn, Piston-Fist Cyclops can attack as though it didn't have defender. | Wayne Reynolds

Dimir Locket | Artifact | | {T}: Add {U} or {B}. {U/B}{U/B}{U/B}{U/B}, {T}, Sacrifice Dimir Locket: Draw two cards. | Zezhou Chen

Izzet Locket | Artifact | | {T}: Add {U} or {R}. {U/R}{U/R}{U/R}{U/R}, {T}, Sacrifice Izzet Locket: Draw two cards. | Dmitry Burmak