Guilds of Ravnica

Cosmotronic Wave | Sorcery | | Cosmotronic Wave deals 1 damage to each creature your opponents control. Creatures your opponents control can't block this turn. | Titus Lunter

Gravitic Punch | Sorcery | | Target creature you control deals damage equal to its power to target player. 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.) | Randy Vargas

Undercity Uprising | Sorcery | | Creatures you control gain deathtouch until end of turn. Then target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.) | Magali Villeneuve